Parihāyati [pari+hā] to decay, dwindle or waste away, come to ruin; to decrease, fall away from, lack; to be inferior, deteriorate Vin i.5; M iii.46 sq. (opp. abhivaḍḍhati); S i.120, 137; iii.125; iv.76 sq.; A iii.252; Dh 364; Sn 767; J ii.197; iv.108; Nd1 5 (paridhaŋsati+) Miln 249 (id.); Pug 12 (read ˚hāyeyya for ˚hāreyya); SnA 167 (+vinassati); PugA 181 (nassati+); PvA 5, 76 (v. l.), 125 (˚hāyeyyuŋ). -- pp. parihīna, Pass. parihiyyati, Caus. parihāpeti (q. v.).