obsess

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ob·sess

(əb-sĕs′, ŏb-)
v. ob·sessed, ob·sess·ing, ob·sess·es
v. tr.
To preoccupy the mind of (someone) excessively.
v. intr.
To have the mind excessively preoccupied with a single emotion or topic: The conference organizer obsessed over the smallest of details.

[Latin obsidēre, obsess-, to beset, occupy : ob-, on; see ob- + sedēre, to sit; see sed- in the Appendix of Indo-European roots.]

ob·ses′sor n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

obsess

(əbˈsɛs)
vb
1. (tr; when passive, foll by with or by) to preoccupy completely; haunt
2. (intr; usually foll by on or over) to worry neurotically or obsessively; brood
[C16: from Latin obsessus besieged, past participle of obsidēre, from ob- in front of + sedēre to sit]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ob•sess

(əbˈsɛs)
v.t.
1. to dominate or excessively preoccupy the thoughts, feelings, or desires of; haunt.
v.i.
2. to think about something unceasingly.
[1495–1505; < Latin obsessus, past participle of obsidēre to occupy, frequent, besiege =ob- ob- + -sidēre, comb. form of sedēre to sit]
ob•sess′ing•ly, adv.
ob•ses′sor, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

obsess


Past participle: obsessed
Gerund: obsessing

Imperative
obsess
obsess
Present
I obsess
you obsess
he/she/it obsesses
we obsess
you obsess
they obsess
Preterite
I obsessed
you obsessed
he/she/it obsessed
we obsessed
you obsessed
they obsessed
Present Continuous
I am obsessing
you are obsessing
he/she/it is obsessing
we are obsessing
you are obsessing
they are obsessing
Present Perfect
I have obsessed
you have obsessed
he/she/it has obsessed
we have obsessed
you have obsessed
they have obsessed
Past Continuous
I was obsessing
you were obsessing
he/she/it was obsessing
we were obsessing
you were obsessing
they were obsessing
Past Perfect
I had obsessed
you had obsessed
he/she/it had obsessed
we had obsessed
you had obsessed
they had obsessed
Future
I will obsess
you will obsess
he/she/it will obsess
we will obsess
you will obsess
they will obsess
Future Perfect
I will have obsessed
you will have obsessed
he/she/it will have obsessed
we will have obsessed
you will have obsessed
they will have obsessed
Future Continuous
I will be obsessing
you will be obsessing
he/she/it will be obsessing
we will be obsessing
you will be obsessing
they will be obsessing
Present Perfect Continuous
I have been obsessing
you have been obsessing
he/she/it has been obsessing
we have been obsessing
you have been obsessing
they have been obsessing
Future Perfect Continuous
I will have been obsessing
you will have been obsessing
he/she/it will have been obsessing
we will have been obsessing
you will have been obsessing
they will have been obsessing
Past Perfect Continuous
I had been obsessing
you had been obsessing
he/she/it had been obsessing
we had been obsessing
you had been obsessing
they had been obsessing
Conditional
I would obsess
you would obsess
he/she/it would obsess
we would obsess
you would obsess
they would obsess
Past Conditional
I would have obsessed
you would have obsessed
he/she/it would have obsessed
we would have obsessed
you would have obsessed
they would have obsessed
Collins English Verb Tables © HarperCollins Publishers 2011
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.obsess - haunt like a ghost; pursue; "Fear of illness haunts her"
preoccupy - engage or engross the interest or attention of beforehand or occupy urgently or obsessively; "His work preoccupies him"; "The matter preoccupies her completely--she cannot think of anything else"
2.obsess - be preoccupied with something; "She is obsessing over her weight"
worry - be worried, concerned, anxious, troubled, or uneasy; "I worry about my job"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

obsess

verb preoccupy, dominate, grip, absorb, possess, consume, rule, haunt, plague, hound, torment, bedevil, monopolize, be on your mind, engross, prey on your mind, be uppermost in your thoughts Thoughts of revenge obsessed him.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

obsess

verb
1. To dominate the mind or thoughts of:
2. To come to mind continually:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
يَتَسَلَّط على
besætte
megszállott: vmi megszállottja
heltaka
apsėstasapsėstumasįkyri mintisįkyriailiguistai
apsēstpārņemt
posadnúť
aklından çıkmamakzihnini meşgul etmek

obsess

[əbˈses]
A. VTobsesionar
B. VIobsesionarse (about, over con, por)
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

obsess

[əbˈsɛs]
vtobséder
to be obsessed by sb/sth → être obsédé par qn/qch
viêtre en proie à des obsessions
to obsess about sth → se tourmenter pour qch
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

obsess

vt to be obsessed by or with somebody/somethingvon jdm/etw besessen sein; to be obsessed about somethingvon etw besessen sein; to be obsessed about doing somethingdavon besessen sein, etw zu tun; something obsesses somebodyjd ist von etw besessen; his one obsessing thoughtder ihn ständig verfolgende Gedanke; don’t become obsessed by itlass das nicht zum Zwang or zur Manie werden
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

obsess

[əbˈsɛs] vtossessionare
to be obsessed by or with sb/sth → essere ossessionato/a da or con qn/qc
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

obsess

(əbˈses) verb
to occupy (someone's mind) too much. He is obsessed by the fear of death.
obˈsession (-ʃən) noun
an obsession about motorbikes.
obˈsessional (-ʃə-) adjective
obsessional behaviour.
obˈsessive (-siv) adjective
obsessive about cleanliness.
obˈsessively adverb
obˈsessiveness noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
Caught on the flank, by the Rue Saint- Pierre-aux-Boeufs, and in the rear through the Rue du Parvis, driven to bay against Notre-Dame, which they still assailed and Quasimodo defended, at the same time besiegers and besieged, they were in the singular situation in which Comte Henri Harcourt, Taurinum obsessor idem et obsessus , as his epitaph says, found himself later on, at the famous siege of Turin, in 1640, between Prince Thomas of Savoy, whom he was besieging, and the Marquis de Leganez, who was blockading him.
There is even a specific term, ChenFenDang (ingredient obsessor), used to describe a certain consumer group that is willing to spend tremendous amounts of time in researching ingredients' safety and effect.
"I am a Madonna obsessor since I was 5, so it's insane that this is happening," she once told (http://www.people.com/article/justin-bieber-sofia-richie-dating-buzz) People Magazine.