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ἥτις

Τὰ πάντα ῥεῖ καὶ οὐδὲν μένει -> Everything flows and nothing stands still
Heraclitus

French (Bailly abrégé)

fém. de ὅστις.

English (Autenrieth)

(ὅ ττι), gen. οὗτινος, ἧστινος, and ὅτ τεο, ὅ(τ)τευ, dat. ὅτεῳ, acc. ὅτινα, pl. neut. ὅτινα, ἅσσα, gen. ὅτεων, dat. ὁτέοισι, acc. ὅτινας: who(so)ever, which(so)ever, what(so)ever, both relative and indirect interrogative; ξεῖνος ὅδ, οὐκ οἶδ' ὅστις, ‘unknown to me,’ Od. 8.28. See ὅτι.

Russian (Dvoretsky)

ἥτις: f к ὅστις.