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separation of a word into parts by inserting a word in the middle: abso-blooming-lutely
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
n. pl. tme·ses (-sēz)
Separation of the parts of a compound word by one or more intervening words; for example, where I go ever instead of wherever I go.
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.
(Grammar) interpolation of a word or group of words between the parts of a compound word
[C16: via Latin from Greek, literally: a cutting, from temnein to cut]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
tme•sis(ˈmi sɪs, təˈmi-)
the interpolation of one or more words between the parts of a compound word, as be thou ware for beware.
[1580–90; < Late Latin tmēsis < Greek tmḗsis a cutting =tmē-, variant s. of témnein to cut + -sis -sis]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The insertion of a word or part of a word in another word.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited