動詞 elucidate:

1. make clear and (more) comprehensible
   同義詞：clarify, clear up
2. make free from confusion or ambiguity; make clear
   同義詞：clear, clear up, shed light on, crystallize, crystallise, crystalize, crystalise, straighten out, sort out, enlighten, illuminate

1. The note help to elucidate the most difficult parts of the text.
   這些注釋有助於弄清文中最難懂的部分。
2. Please elucidate the reasons for your decision.
   請把你作出決定的理由解釋清楚。

e.lu.ci.date

v.（動詞）
e.lu.ci.dat.ed,e.lu.ci.dat.ing,e.lu.ci.dates
v.tr.（及物動詞）
To make clear or plain, especially by explanation; clarify.
闡明：使清楚或容易，尤指通過解釋；使明晰
v.intr.（不及物動詞）
To give an explanation that serves to clarify.See Synonyms at explain
闡明：提供說明以使清晰參見 explain

來源：
Late Latin ôlôcid3re ôlôcid3t-
后期拉丁語 ôlôcid3re ôlôcid3t-
ô-, ex- [intensive pref.] * see ex-
ô-, ex- [加強詞義前綴] *參見 ex-
Latin lôcidus [bright] from lôcôre [to shine] * see leuk-
拉丁語 lôcidus [明亮] 源自 lôcôre [閃耀] *參見 leuk-

【引伸】
elu.cida.tion
n.（名詞）
elu.cida.tive
adj.（形容詞）
elu.cida.tor
n.（名詞）