to be spread out, intrs. to spread (?) AN.iv.97 (kodho p., as if fr. pat); Ja.iii.283 (C. nikkhamati as if fr. tṛ; Kern. trsls “to be for sale”).
in form = pa + tāyati, diff. in meaning; not sufficiently explained, see Kern,
p. 29 s. v. It is probably a distorted *sphāṭayati: see under pharati phalaka and phāteti