-ty
suff. Condition; quality: realty.
[Middle English -te, from Old French, from Latin -tās.]
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.
-ty
suffix (Mathematics) denoting a multiple of ten: sixty; seventy.
[from Old English -tig ten]
-ty
suffix forming nouns indicating state, condition, or quality: cruelty.
[from Old French -te, -tet, from Latin -tās, -tāt-; related to Greek -tēs]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
-ty1
, a suffix of numerals that are multiples of ten: twenty; thirty.
[Middle English; Old English
-tig, c. Old Frisian
-tich, Old High German
-zug, Old Norse
tigr, Gothic
tigjus; akin to
ten]
-ty2
, a suffix occurring in loanwords from Latin and French, forming mainly from adjectives nouns denoting state or condition: ability; certainty; chastity; unity.
[Middle English -te(e) < Old French -te(t) < Latin -tātem, acc. of -tās]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.