संस्‍कृतशब्‍दकोशः

अजस्र

अथक, सदा ताजा, सतत

not to be obstructed, untiring, ever fresh, perpetual

Monier–Williams

अजस्र — {á-jasra} mfn. (√{jas}), not to be obstructed, perpetual RV. &c##({am} [gaṇa {svar-ādi}, &c.] or {eṇa} [RV. vi, 16, 45]), ind. perpetually, for ever, ever