āracayāracayā
by means of hammering, slashing or beating (like beating a hide) Snp.673 (gloss ārajayārajayā fr. ā + *rañj or *raj)
■ Snp-a.481 explains the passage as follows: ārajayārajayā; i.e. yathā manussā allacammaṃ bhūmiyaṃ pattharitvā khīlehi ākoṭenti, evaṃ ākoṭetvā pharasūhi phāḷetvā ekam ekaṃ koṭiṃ chinditvā vihananti, chinnachinnakoṭi punappuna samuṭṭhāti; āracayāracayā ti pi pāṭho, āviñjitvā (variant reading BB āvijjhitvā) āviñjitvā ti attho
■ Cp. ārañjita.
ā + racayā a ger. or abl. form. fr. ā + *rac, in usual Sk. meaning “to produce”, but here as a sound-root for slashing noise, in reduplication for sake of intensification. Altogether problematic