Webster’s Revised Unabridged Dictionary · 1913
Mobility
Mo·bil′i·ty (mō·bĭl′ĭ·ty̆), n. [L. mobilitas: cf. F. mobilité.] 1. The quality or state of being mobile; as, the mobility of a liquid, of an army, of the populace, of features, of a muscle. Sir T. Browne.
2. The mob; the lower classes. [Humorous] Dryden.