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English word insist comes from Latin sisto, Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.)
sisto (Latin)
(intransitive) I place myself; I stand.. (intransitive) I stand still; I halt; I stand firm.. (intransitive, legal) I appear in court.. (transitive) I cause to stand; I set; I place.. (transitive, legal) I cause to appear in court.
ingratus (Latin)
Thankless. Ungrateful. Unpleasant, disagreeable.
insisto (Latin)
(figuratively, with dative or accusative) I set about, devote or apply myself to, set to work (on).. (figuratively, with dative or infinitive) I persevere, continue, persist in. (figuratively, with dative) I press upon, urge.. (intransitive) I halt, pause, stop, stand still; pause in thought, dwell upon, hesitate, doubt.. (transitive) I set foot, stand, tread or press on or upon something.. [...]
insister (Middle French)
insist (English)
(obsolete, chiefly, geometry) To stand (on); to rest (upon); to lean (upon).. (sometimes, with on or upon or (that + subjunctive)) To demand continually that something happen or be done.. (with on or upon or (that + ordinary verb form)) To hold up a claim emphatically.