θετός · thetos — LSJ
placed, set, having position
placed, set, E. IA 251 (lyr.); having position, στιγμὴ οὐσία θετός Arist. APo. 87a36.
II taken as oneʼs child, adopted, adopted son, adopted daughter, adoptive
taken as oneʼs child, adopted, Pi. O. 9.62, E. Fr. 359, etc.; θετὸν παῖδα ποιεῖσθαι Hdt. 6.57, cf. Pl. Lg. 929c; θετὸς γενέσθαι τινί or ὑπό τινος, Plu. Thes. 13, App. BC 1.5; θετός, ὁ, adopted son, dub. in Is. 3.69; θετή adopted daughter, Hsch.; also θ. πατήρ adoptive father, D.S. 10.11.