Definition of ostler noun from the Oxford Advanced Learner's Dictionary

 

ostler

 noun
noun
BrE BrE//ˈɒslə(r)//
 
; NAmE NAmE//ˈɑːslər//
 
(North American English also hostler)
 
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(in the past) a man who took care of guests’ horses at an inn Word Origin late Middle English: from Old French hostelier ‘innkeeper’, from hostel, from medieval Latin hospitale, neuter of Latin hospitalis ‘hospitable’, from hospes, hospit- ‘host, guest’.