The Avestan word gava
Word gava
Meaning hand

Other words that might be of interest
zānu- ‘jaw’, čarǝman- ‘skin’, zǝrǝd- ‘heart’, sarah- ‘head’, hizū ‘tongue’, staman ‘mouth’, bruuat̰ ‘eyebrow’, ast- ‘bone’, tanū- ‘body’, bāzu ‘arm, leg’, nāfa- ‘navel’, zānu- ‘knee’, xvafəna- ‘sleep’, pad- ‘foot’