The person who feels an itch (and has a desire to scratch it) is encoded as the grammatical subject, e.g. handžovav ‘I itch, I feel an itch’.
Early Romani reconstruction
Boretzky & Igla's etymology
112: no etymology; but cf. xandž < OIA kharju-; cf. Pali khajjū, Hindi khāj; perhaps also contamined with OIA kandū ‘Jucken’; cf. also Persian xeneš ‘Jucken, Krätze’ and Armenian xandz-el ‘versengen, anbrennen’