στήριξις

εως, ἡ
A. fixed position, Sch.Ar. Nu. 1509.
2. determination of a disorder to a particular part, ἐς ὀφθαλμόν Hp. Epid. 4.35; cf. στηρίζω B. 11.2.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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