Georg Autenrieth, A Homeric Dictionary

θυ_μός (θυ?ω): heart, soul, life, the seat of emotion, reason, and of the vital principle itself; an extremely common and highly characteristic word in Homer, often employed where no equivalent is called for in modern speech. Of life, θυ_μὸν ἀφελέσθαι, ὀλέσαι, θυ_μὸν ἀποπνείειν, ἐγείρειν, θυ_μὸν ἀπὸ μελέων δῦναι δόμον ?῎αιδος εἴσω, Il. 7.131; emotion, χόλος ἔμπεσε θυ_μῷ, θυ_μὸν ὀρι?νειν, ἐκ θυ_μοῦ φιλέειν, θυ_μῷ χαίρειν, ἀπὸ θυ_μοῦ | μᾶλλον ἐμοὶ ἔσεαι, ‘further from my heart,’ Il. 1.562; desire, appetite, πλήσασθαι, τέρπειν θυ_μόν, θυ_μὸς ἀνώγει, κέλεται, κατὰ θυ_μόν, ‘to one's wish,’ Il. 1.136; thoughts, disposition, θυ_μὸν πείθειν, φράζεσθαι θυ_μῷ, ἕνα θυ_μὸν ἔχειν, ἐν θυμῷ βαλέσθαι, ‘lay to heart’; κατὰ φρένα καὶ κατὰ θυ_μόν, ‘in mind and soul.’