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ου (τὸ) [ῐᾱ] c. τιθασεία, TH. H.P. 3, 2, 2 dout.
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LSJ
τό, f.l. for τιθασεία, Thphr. HP 3.2.2 codd. τιθασός, όν, tamed, domesticated; esp. of animals, tame, domestic, χήν S. Fr. 866, cf. Epicr. 3.24; opp. ἄγριος, Pl. Plt. 264a; πάντων τιθασσότατον (sic codd., v. ad fin.) καὶ ἡμερώτατον τῶν ἀγρίων ὁ ἐλέφας Arist. HA 630b18; of persons, tractable, docile, AP 5.177 (Mel.), Plu. 2.51f, al. ; of plants, cultivated, reared in gardens, Id. Cor. 3. Adv., -σῶς πρὸς ἡμᾶς σχεῖν to be reclaimed, Pl. Ti. 77a; τ. ἔχειν πρὸς τοὺς ἀνθρώπους Arist. HA 608b31; ἐπιτιμᾶν τινι cj. in Ph. 1.676. metaph, domestic, intestine, Ἄρης τιθασὸς ὤν A. Eu. 356 (lyr.). (The spelling with single ς is found in the best codd., e.g. BT of Pl. Plt. l.c., and papyri (PCair. Zen. 75.5 (iii BC), Phld. Lib. p. 40 O., and the Philo papyrus), and corroborated by the short quantity of the second syllable in verse; the form τιθασσός (τιθασσεύω etc.) is freq. in medieval codd., as of Arist. ll. cc., Porph. Gaur. 4.4, 4.8, al., Chor. p. 96 B., cf. Sup. τιθασσότατος Arist. supr. cit., but should be rejected.)
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)