retain
UK: rɪˈteɪn | US: rɪˈteɪn
vt. to keep or continue to have something
vt. to remember information or facts
vt. (legal) to secure the services of someone, e.g., a lawyer
The word "retain" entered Middle English from Old French retenir, which itself came from Latin retinēre (re- "back" + tenēre "to hold"). The core idea is "holding back" or "keeping possession of something," whether physically (objects) or mentally (memories). Over time, it expanded to legal contexts, such as retaining professional services.
She managed to retain her composure during the interview.
The material helps students retain information more effectively.
The company decided to retain its current marketing strategy.
He retained a lawyer to handle the contract negotiations.
This container is designed to retain heat for hours.