Proto-IE: *ān-
Meaning: face, mouth; to notice
Old Indian: āná- m., ānana- n. `face, mouth'
Old Greek: prǟnḗs `vorwärts geneigt, kopfüber, abschüssig, steil', pros-ǟnḗs `freundlich', ap-ǟnḗs `unfreundlich, hart'
Russ. meaning: лицо, рот; обращать внимание
References: WP I 68