the.com/retain
To keep what wanted to leave, by grip or by charm.
means To hold onto something or someone, or to keep them in your possession, memory, or employ.
from From Latin retinere, re- (back) plus tenere (to hold) — literally to hold back, the same tenere gripping tenant, tenacious, and tenure.
Legal hireA retainer is money holding a lawyer back from others.
Memory sideRetention is the brain refusing to let go.
Water senseRetaining water means your body hoards it stubbornly.