ἀρχίφρουρος
ἀρχίφρουρος, commandant of a φρουρά
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Found the closest form ἀρχίφιλον. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.
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Parsed as:
✓ masculine accusative singular of ἀρχίφιλος
No checked forms of ἀρχίφρουρος in the morphology database.