To double the degree
English: doubly, double, twice
Bahasa: benar-benar, menggandakan, berlipat, berganda
Less certain link between this word and this sense.
berduaBahasa Indonesia
double, doubly, twice
Very common
#839 of the corpus · 151.2 per million words · 645,913 occurrences
From dua (ber-) · essential, #84