ἀρκτῷα

From LSJ

εἰ μὴ προσέθηκα καὶ κατεσιώπησα ψυχήν μου, ὡς τὸ ἀπογεγαλακτισμένος ἐπὶ μητέρα αὐτοῦ → surely I have calmed and quieted my soul like a weaned child on its mother's shoulder

Source

Russian (Dvoretsky)

ἀρκτῷα: τά северные области, арктика Luc.