ἰσχυρόρριζος
From LSJ
τὸ δ' ἡδέως ζῆν καὶ ἱλαρῶς οὐκ ἔξωθέν ἐστιν, ἀλλὰ τοὐναντίον ὁ ἄνθρωπος τοῖς περὶ αὑτὸν πράγμασιν ἡδονὴν καὶ χάριν ὥσπερ ἐκ πηγῆς τοῦ ἤθους προστίθησιν → but a pleasant and happy life comes not from external things, but, on the contrary, man draws on his own character as a source from which to add the element of pleasure and joy to the things which surround him
English (LSJ)
ον, (ῥίζα) A with strong root, Thphr.CP2.12.3, etc.
Greek (Liddell-Scott)
ἰσχῡρόρριζος: -ον, (ῥίζα) ἰσχυρὰν ἔχων ῥίζαν, Θεοφρ. π. Φυτ. Αἰτ. 2. 12, 3, κτλ.
Greek Monolingual
ἰσχυρόρριζος, -ον (Α)
αυτός που έχει ισχυρές, στέρεες ρίζες.
[ΕΤΥΜΟΛ. < ἰσχυρός + -ρριζος (< ρίζα), πρβλ. βαθύρριζος, μακρόρριζος].