Entry record from Fricke (2013): Hewa
gu
(1) adj. for things(eng).lama(ind).
(2) adv. later(eng).nanti(ind).
Grammatical note: People in Hewa said that 'gu' can also mean 'self' but in general, they were not very sure how to translate it when it had another meaning than 'old'.
gun
• adj. very old(eng).sangat lama(ind).