πωλοτρόφος
From LSJ
ἐφ' ἁρμαμαξῶν μαλθακῶς κατακείμενοι → reclining softly on litters, reclining luxuriously in covered carriages
English (LSJ)
(parox.), ον,
A rearing young horses, Θεσσαλίη AP9.21. 2 generally, οἱ π. τῶν ἐλεφάντων their trainers, Ael.NA 16.36.