mid-15c., "persistence, urgency," from Old French insister "to insist" (14c.) and directly from Latin insistere (see insist) + -ence.
the insistence of their hunger
insistence on grammatical correctness is a conservative position
insipid
insipidity
insipience
insipient
insist
insistence
insistent
insobriety
insociability
insolate
insolation