ἀντίχειρ
From LSJ
τὸ κακὸν δοκεῖν ποτ' ἐσθλὸν τῷδ' ἔμμεν' ὅτῳ φρένας θεὸς ἄγει πρὸς ἄταν → evil appears as good to him whose mind the god is leading to destruction (Sophocles, Antigone 622f.)
English (LSJ)
(sc. δάκτυλος, which is supplied in Heliod. ap. Orib.48.54.1, S.E.M.1.137, Gp.4.12.13), ὁ,
A thumb, as being opposite to the fingers, Sor.1.103, Dsc.5.79, Plu.2.761c, etc. II responsive to the touch, βόμβοι κυμβάλων Diog.Trag.1.4 (Casaubon). III Subst. (sc. σωλήν, inverse tube of alembic, Zos.Alch.p.225B.
German (Pape)
[Seite 264] ειρος, ὁ, der Daumen, als der den vier andern Fingern entgegenstehende Theil der Hand, Poll. 2, 145. 148, wo auch ἀντιχειρία steht; Macrob.