IPA: /ɪnˈsɪst/
KK: /ɪnˈsɪst/
To firmly state or demand something, often repeatedly, without giving up.
She insisted on attending the meeting despite feeling unwell.
Past: insisted
Past Participle: insisted
To demand something firmly and not allow it to be ignored or refused.
She insisted that everyone attend the meeting.
Past: insisted
Past Participle: insisted
Insist is formed from "in-" (meaning on or upon) and "sistere" (meaning to stand). The word means to stand firmly on something, or to assert something strongly.
Think of standing 'upon' ('in-') a point to assert it strongly — that's what it means to insist.