Phāsu
Phāsu,(adj.) [etym.? Trenckner,Notes 82 (on Miln.1417:corr.J.P.T.S.1908,136 which refers it to Miln.1315) suggests connection with Vedic prāśu enjoying,one who enjoys,i.e.a guest,but this etym.is doubtful; cp.phāsuka.A key to its etym.may be found in the fact that it never occurs by itself in form phāsu,but either in composition or as °ka] pleasant,comfortable; only neg.a° in phrase aphāsu-karoti to cause discomfort to (Dat.) Vin.IV,290; and in cpds.°kāma anxious for comfort,desirous of (others) welfare D.III,164; °vihāra comfort,ease Vin.II,127; D.I,204; Dhs.1348=Miln.367 (cp.DhsA.404); Miln.14; Vism.33; VbhA.270; PvA.12.(Page 479)