L'ANCH, verb transitive [from lance.] 1. To throw, as a lance; to dart; to let fly. See whose arm can lanch the surer bolt. 2. To move, or cause to slide from the land into the water; as, to lanch a ship. L'ANCH, verb intransitive To dart or fly off; to push off; as, to lanch into the wide world; to lanch into a wide field of discussion. L'ANCH, noun 1. The sliding or movement of a ship from the land into the water, on ways prepared for the purpose. 2. A kind of boat, longer, lower, and more flat-bottomed than a long boat.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI