to desire, long; to dance, play sport; to shine; to sound forth. See lāsana, abhilāsa upaḷāseti, alasa, vilāsa
caus lāseti to sport, to amuse (oneself) Vin.ii.10 (with vādeti, gāyati, naccati).

represents las to gleam, shine; sport, play; as well as laṣ to desire, long for. Cp. Lat. lascivus; Gr. λιλαίομαι; Goth. lustus = E., Ger. lust etc
■ The Dhtp.324 defs. las as “kanti”