entries → 由於
TSUMUGU · TOCFL 3 (est.) · 詞
由於 word · TOCFL 3 (est.)
由於 ＝ 由 ＋ 於
ㄧㄡˊ ㄩˊ · yóuyú
preposition — due to; because of; owing to

字源 FORM — what the parts do

由from; due to; cause (自由的由)yóu
於at; from; in — preposition marker (關於的於)yú
由於，自由的由，關於的於。
關 · Related
因為yīnwèibecause — the causal conjunction; more colloquial因此yīncǐtherefore — the result side of the same causal pair