Proto-IE: *gʷeyǝ-
Meaning: to grow old, to perish
Old Indian: jināti `to become old', jyāni- f. `infirmity, old age', jīna- `old, aged', jyā́yas- 'elder', jívri- `old, worn out, decrepit'
Avestan: prs. ǰināiti `schwächt', inf. ǰayāi; aǰyamna- `sich nicht vermindernd, unversieglich'
Russ. meaning: стареть, пропадать
References: WP I 666 f