Geez

wallaṭa - to change, exchange, alter, barter; to transcribe, register (CDG 614)

PES
*wlṭ/*lwṭ - to change (CDG 614; Kogan 2015: 464)
The origin of Proto-EthS *wlṭ/*lwṭ ‘to change’ is uncertain, but it might be related to PWS *lwṭ ‘to twist, to turn, to do a second time’.