Dictionary Definition:
Langhati [langh, a by -- form of lagh, as in laghu (see lahu) light, quick; Idg. *legh & *lengh, with meanings of both "quick" & "light" (or "little") from the movement of jumping. Here belong Gr. elaxu/s little, e)lafro/s quick; Lat. levis (fr. *leghṷis), Goth. leihto= E. light; Ohg. lungar quick, Ger. ge -- lingen to succeed. Further Lat. limen threshold. Perhaps also the words for "lungs," viz. Ger. lunge, E. lights etc. -- The Dhtp 33 defines lagh (langh) by "gati -- sosanesu"] 1. to jump over (acc.) step over, to hop J iii.272; v.472 (langhamāno yāti); Miln 85. -- 2. to make light of, disregard, neglect, transgress PvA 15; VvA 138. -- Cp. abhilanghati, ullanghati. -- Caus. langheti (=langhati) to jump over (acc.), lit. to make jump J v.472 (vatiŋ); Th 2, 384 (Meruŋ langhetuŋ icchasi); Miln 85. -- ger. langhayitvā ThA 255, & (poet.) langhayitvāna J i.431 (=attānaŋ langhitvā C.); Mhvs 25, 44 (pākāraŋ). <-> Cp. olangheti.