οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
θαλάσσιος, ἁλιοτρεφής, θαλασσονόμος, ἁλίζωος, ὑγρός, ναυτικός, ἁλυκός, πελάγιος, θαλάσσιος, θαλάττιος, θαλασσίδιος, ἁλιεύς, ἅλιος, θαλασσαῖος, νηΐτης, πελαγικός, ἁλίπλωος, ἁλινηχής, νήϊος, νάϊος, πάραλος, ἁλμήεις