unscrew
UK: ʌnˈskruː | US: ʌnˈskruː
vt. to loosen or remove by turning (a screw, lid, etc.)
vi. to become loosened or detached by turning
The word "unscrew" combines the prefix "un-" (Old English "un-," meaning "not" or "reverse action") with the noun/verb "screw" (from Old French "escroe," meaning "nut, cylindrical fastener"). The prefix "un-" negates or reverses the action of "screw," creating a verb meaning "to remove or loosen by turning." This follows a common pattern in English where "un-" is added to verbs to indicate reversal (e.g., "untie," "unlock").
She used a screwdriver to unscrew the lid from the jar.
The bolt was rusted and wouldn’t unscrew easily.
Remember to unscrew the cap before refilling the bottle.
He tried to unscrew the lightbulb but it was stuck.
The mechanic unscrewed the panel to access the engine.