verb/ɑ̃.vɔ.le/
to take off, to take flight; to blow away; to fly (of time); to vanish, disappear, walk (to be stolen)
“Temps jaloux, se peut-il que ces moments d’ivresse, ¶ Où l’amour à longs flots nous verse le bonheur, ¶ S’envolent loin de nous de la même vitesse ¶ Que les jours de malheur ?” — Jealous time, could it be that these drunken moments ¶ Where love in long floods pours us enjoyment ¶ Fly off far from us at the same speed ¶ As the days of hardship?
From en (“from”) + voler. Unrelated to Latin involāre.