اکر (Rumi spelling akar, plural اکر٢)
From Proto-Malayic *akar, from Proto-Malayo-Chamic *akar, from Proto-Malayo-Sumbawan *(w)akar, from Proto-Sunda-Sulawesi *(w)akar, from Proto-Western Malayo-Polynesian *(w)akaʀ, from Proto-Malayo-Polynesian *(w)akaʀ.