Orme
*Attendez-moi sous l’orme = You may wait for me till doomsday.
Ortie
Rabelais jeta le froc aux orties = Rabelais was an unfrocked priest.
Ôter
Ôte-toi de là que je m’y mette = You get out and let me get in.
[Origin unknown; probably le Vicomte de Ségur first used it. Comp. Sancho Panza, “Imitando al juego de los muchachos que dicen ‘Salta tu y dámela tu’ doy un salto del gobierno.”]
Oublions le passé = Let bygones be bygones.
Ours