Probably from Proto-Mon-Khmer *kdɔʔ (“plantain bud”). Compare Balinese ᬕᭂᬤᬂ (gedang, “papaya”), Javanese ꦒꦼꦝꦁ (gedhang, “banana”), Old Javanese gĕḍaṅ (“banana”).
ᮌᮨᮓᮀ • (gedang)