From shuwq in the original sense of stretching out after; a longing -- desire.
see HEBREW shuwq
H8669. teshuqah
[תְּשׁוּקָה] noun feminine longing; — of woman for man, תְּשׁוּקָתֵח אֶלאִֿישֵׁח Genesis 3:16 (J); of man for woman, תְּשׁוּקָתוֺ וְאֵלַי לְדוֺדִי אֲנִי Cant 7:11; of beast to devour, figurative תְּשׁוּקָתוֺ אֵלֶיךָ 4:7 (J). (ᵐ5 ἀποστροφή Genesis, ἐπιστροφή Canticles, whence NesMarg. 6 proposes תְּשׁוּבָתֵךְ 3:16, which BallHpt reads in all; but how explain the unusual and striking word in MT?).