9 Grammatical Pitfalls
also instil, early 15c., "to introduce (liquid, feelings, etc.) little by little," from Latin instillare "put in by drops, to drop, trickle," from in- "in" (see in- (2)) + stilla "a drop" (see distill). Related: Instilled; instilling.
instill in·still (ĭn-stĭl')v. in·stilled, in·still·ing, in·stills To pour in drop by drop.