Indo-European etymology : Query result

Proto-IE: *tāy- [*(s)tāy-]

Meaning: to steal, to do secretly

Hittite: taja-, daja- (I) 'stehlen, bestehlen' (Tischler)

Tokharian: B ene-stai 'in secret, secretly' (Adams 84)

Old Indian: stāyát `stealthy'; stāyú-, tāyú- m. `thief'; stéya- n. `theft, robbery', stená- m. `thief, robber'

Avestan: tāyu- `Dieb', tāya- `Diebstahl'

Old Greek: tǟǘsio- `eitel, vergeblich', *tǟ́tǟ: tḗtē `want' Hsch., t[ǟ̂]tos n. 'want' Hsch., Phot., ? Eur.; tǟtáomai̯ `entbehren, darben, beraubt sein'

Slavic: *tājь, *tājī́tī, *tātь

Celtic: *tāti- > OIr tāid `Dieb'

Russ. meaning: воровать, делать тайно

References: WP II 610