The Ancient Macedonian word ἰλάρχης
Word ἰλάρχης
í l a r kʰ ɛː ς
IPA ᯉlarkʰɛːς
Meaning commander of a corps, millitary term
See also Ancient Macedonian: ἴλη ‘millitary term’
Synonyms διμοιρίτης, διμάχαι, δεκαστάτηρος, ὑπασπισταί

Comments
Commander of the cavalry ἴλη. The word has no pecularities and in fact has an attic-ionic ending (-αρχής instead of expected -αρχᾱς).