entries → 沿革
TSUMUGU · TOCFL 5 (est.) · 詞
沿革 word · TOCFL 5 (est.)
沿革 = 沿
ㄧㄢˊ ㄍㄜˊ · yángé
noun — the history of changes, how something has developed over time

字源 FORM — what the parts do

沿to follow along, carry on (沿用)yán
to change, reform (改革)
沿革,沿用的沿,改革的革。