√las 'be lively'
present: [1.] lasati etc. E.+ lasate etc. perfect: lalAsa [aorist: alIlasat alasIt lasizyati lasitA ]verbal: lasita E.+ secondary: causative: lAsayati etc. E.+ lAsyate derivatives: -las -lasa B.+ -lasana C. lAsana E.+ lAsa E.+ lAsaka E.+ -lAsin E.+ lAsya E.+ lAlasa E.+ In meaning, lAlasa belongs distinctly to √laz, and the two roots are very possibly one in origin; alasa is the only pre-epic form.