ἄρφα
From LSJ
ὑπὸ δὲ τῆς φιλαυτίας παρηγμένοι ἄλογα φασὶν τὰ ζῷα ἐφεξῆς τὰ ἄλλα σύμπαντα → it is self-love which leads them to say that all the other animals without exception are non-rational
English (LSJ)
ἀρραβών (i.e.
A arrha), Hsch. ἀρφύς· ἱμάς (Maced.), Id. ἀρφύταινον· δίσκος (Lyd.), Id. ἄρχα· ἀρραβών, Id.; cf. ἄρφα.