osciller (os-sil-lé), v.n., to oscillate, to swing, to vibrate, to fluctuate, to waver. — entre deux opinions; to be undecided, to waver between two opinions.
oscitant, -e, adj., (med.) oscitant, gaping, yawning.
oscitation, n.f., oscitancy, gaping.
osculat-eur, -rice, adj., (geom.) osculatory.
osculation, n.f., (geom.) osculation.
osé, -e, adj., bold, daring; attempted, ventured.
*oseille, n.f., sorrel.
oser, v.a., to dare, to be so bold as, to venture. Vous n’osez rien; you won’t venture anything.
oser, v.n., to dare, to venture, to presume, to attempt. Je n’oserais, je n’ose; I dare not. Si j’ose le dire; if I may venture so to speak. Oserai-je le dire? can I venture to say it? Oseriez-vous le blâmer? would you dare to blame him?