e·lu·ci·date 
(ĭ-lsĭ-dāt′)
(ĭ-lsĭ-dāt′)v. e·lu·ci·dat·ed, e·lu·ci·dat·ing, e·lu·ci·dates
v.tr.
To make clear or plain, especially by explanation; clarify. See Synonyms at explain.
v.intr.
To explain or clarify something: She gave a one-word answer and refused to elucidate any further.
[Late Latin ēlūcidāre, ēlūcidāt- : Latin ē-, ex-, intensive pref.; see EX- + Latin lūcidus, bright (from lūcēre, to shine; see leuk- in the Appendix of Indo-European roots).]
e·lu′ci·dation n.
e·luci·da′tive adj.
e·luci·da′tor n.