fledge

From Middle English flegge, fligge, flygge, from Old English flyċġe (“able to fly, fledged”) (attested in unflyċġe, unfligge (“unfledged”)), from Proto-West Germanic flugi, from Proto-Germanic flugjaz (“able to fly, fledged”), from Proto-Indo-European *plewk- (“to run, flow, be swift, flee, fly”). Cognates From Proto-Germanic: Dutch vlug (“fledged, able to fly, nimble, swift”), Low German flügg (“fledged”), German flügge, German flücke (“fledged”), Icelandic fleygur (“able to fly, fledged”)