Θησεῖον · Thēseion — LSJ
temple of Theseus
temple of Theseus, a sanctuary (ἄσυλον) for criminals and slaves, Ar. Eq. 1312, Fr. 567:—also Θησέον, Pherecr. 49 (cf. Et.Gen.).
II festival of Theseus
Θησεῖα, τά, festival of Theseus, Ar. Pl. 627:—also Θησέα, SIG 1029.78 (iv B.C.).
III holewort, Corydalis densiflora
θησεῖον, τό, holewort, Corydalis densiflora, Thphr. HP 7.12.3, Plin. HN 21.107.