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obsess

[ uhb-ses ]
/ əbˈsɛs /
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See synonyms for: obsess / obsessed / obsessing on Thesaurus.com

verb (used with object)

to dominate or preoccupy the thoughts, feelings, or desires of (a person); beset, trouble, or haunt persistently or abnormally: Suspicion obsessed him.

verb (used without object)

to think about something unceasingly or persistently; dwell obsessively upon something.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of obsess

1495–1505; <Latin obsessus, past participle of obsidēre to occupy, frequent, besiege, equivalent to ob-ob- + -sid(ēre) combining form of sedēre to sit1
ob·sess·ing·ly, adverbob·ses·sor, noun
abscess, obsess
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for obsess

obsess
/ (əbˈsɛs) /

verb

(tr; when passive, foll by with or by) to preoccupy completely; haunt
(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 & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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