swelling, increase Ja.ii.426 (= vaḍḍhi); Vism.271 (vuddhi +). Usually combined with kṛ; as phāti-kamma increase, profit, advantage Vin.ii.174 Vb-a.334 & phāti-karoti to make fat, to increase, to use to advantage MN.i.220 = AN.v.347; AN.iii.432.
cp. Sk. sphāti, fr. sphāy, sphāyate to swell, increase (Idg. *spē(i), as in Lat. spatium, Ohg. spuot Ags. spēd = E. speed; see Walde, Lat. Wtb. s. v. spatium) pp. sphīta = P. phīta