entries → 難道
TSUMUGU · TOCFL 4 (est.) · 詞
難道 word · TOCFL 4 (est.)
難道 ＝ 難 ＋ 道
ㄋㄢˊ ㄉㄠˋ · nándào
adverb — could it be that…?; do you really mean…? (rhetorical)

字源 FORM — what the parts do

難hard, hardly (困難)nán
道to say (說道)dào
難道，困難的難，說道的道。