yas cl. 4. P. ( Dhātup. xxvi, 101 ) ya/syati (rarely yasati cf. Pāṇ. iii, 1, 71 ; Impv. -yayastu , RV. ; Gr. also pf. yayAsa ; aor. ayasat ; fut. yasitA , yasizyati ; inf. yasitum ; ind.p. yasitvA , or yastvA ), to froth up, foam, RV. ( cf. √ yez ); to heat or exert one's self, Car. ; to strive after ( dat. ), Kāvyād. ii, 83 ( v.l. ) : Caus. yAsayati ( aor. ayIyasat ) Gr. : Desid. yiyasizati , ib. : Intens. yAyasyate , yAyasti , ib. [ Cf. Gk. ζέω &c.]
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yas 1 4 P. ( yasati, yasyati, yasta ) To strive, endeavour, labour, — Caus. ( yAsayati-te ) To put to trouble.