Lexicon pólos: a foal Original Word: πῶλος, ου, ὁPart of Speech: Noun, Masculine Transliteration: pólos Phonetic Spelling: (po'-los) Short Definition: a colt, young ass Definition: a colt, young ass, foal. NAS Exhaustive Concordance Word Origina prim. word Definitiona foal NASB Translationcolt (12). 
 Thayer's STRONGS NT 4454: πῶλοςπῶλος,  πωλου,  ὁ (in classical Greek  ἡ also) (Latin pullus, O. H. G. folo, English  foal; perhaps allied with  παῖς; cf.  Curtius, § 387);  1. a colt, the young of the horse: so very often from Homer down.  2. universally, a young creature: Aelian v. h. 4, 9; specifically, of the young of various animals; in the N. T. of a young ass, an ass's colt: Matthew 21:2, 5, 7; Mark 11:2,(3 L marginal reading),4,5,7; Luke 19:30, 33, 35; John 12:15 (also in Geoponica); the Sept. several times for עַיִר; for יַעֲלָה a female ibex, Proverbs 5:19.   
 
 
 
  Strong's colt.  Apparently a primary word; a "foal" or "filly", i.e. (specially), a young ass -- colt.   |  
  |