penthemimeris

The story

1. Ancient Greek · derived fromπενθημιμερής“having five half-feet”
2. Latin · derived frompenthēmimeris
3. English todaypenthemimeris

From Latin penthēmimeris, from Ancient Greek πενθημιμερής (penthēmimerḗs, “having five half-feet”): πέντε (pénte, “five”) + ἡμι- (hēmi-) + μέρος (méros, “part, metrical foot”).