ὑποθέναρ
From LSJ
εἰ μὴ ἦλθον καὶ ἐλάλησα αὐτοῖς, ἁμαρτίαν οὐκ εἶχον → if I had not come and spoken to them, they would not be guilty of sin
English (LSJ)
τό,
A the part of the palm next the fingers, Ruf.Onom. 87, Poll.2.143. 2 = στῆθος 111.2, base of the thumb, Orib.25.1.29. 3 the part opposite the στῆθος, inner ridge of palm, Gal.14.704.
Greek (Liddell-Scott)
ὑποθέναρ: τό, τὸ μέρος τῆς παλάμης, «τὸ ἀπὸ τοῦ λιχανοῦ ἕως τοῦ μικροῦ δακτύλου» Πολυδ. Β΄, 143, πρβλ. Γαλην. 14. 704.