ἀρνίον
From LSJ
εἰ μέντοι νόμον τελεῖτε βασιλικὸν κατὰ τὴν γραφήν, Ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν, καλῶς ποιεῖτε → Now if you're accomplishing the King's Law according to scripture — Thou shalt love thy neighbour as thyself — you're doing the right thing (James 2:8)
English (LSJ)
τό, Dim. of ἀρήν,
A a little lamb, Lys.32.21, Eub.150.4, PStrassb.24.7 (ii A.D.). II sheepskin, fleece, Luc.Salt.43.