asar Save DMLBS 1 asar v. asa 2 asar [Sp.Ar. ‘aṣāh or Ar. ‘aṣā (ar-rā‘ī) = knotgrass (lit. “shepherd’s staff”)] , (?) knotgrass (Polygonum aviculare) conf. w. teasel (Dipsacus); cf. altersandarei. asar, i. virga pastoris Alph. 15.