Other forms: misplaced, misplacing, misplaces
To misplace is to put something down and lose track of it. Misplace the keys, misplaced my glasses, a misplaced file.
It is gentler than lose, since misplacing something implies it is still in the house. The participle has a separate life in misplaced trust and misplaced confidence, meaning given to the wrong person.
1verbmisplaceTo put something down and lose track of it.
“I've misplaced my glasses again; have you seen them anywhere?”
misplace is a losing.
From mis- + place.
Etymology from Wiktionary, CC BY-SA