Notes :Very probably two roots: cf. the opposition in Dravidian; in Kartv. cf. also *ṗir- 'to beat, sharpen (a scythe)'; in Altaic - *p`i̯ā́rV 'to split, crack'; in ST - *prăt (~ bh-) 'divide, cut off', *pro (~b-,-ew,-aw) 'to destroy', *prV̄t (~ bh-) id.