different between lutulent vs luculent

English

From Latin lutulentus (“dirty, impure”), from lutum (“mud, dirt”)

lutulent (comparative more lutulent, superlative most lutulent)

From Latin l?culentus, from l?x (“light”).

luculent (comparative more luculent, superlative most luculent)

(now rare) Shining, brilliant.
(obsolete) Of language, speeches etc: lucid, brilliantly clear.
- , I.iv.1:
  Cleombrotus Ambraciotes persuaded I know not how many hundreds of his auditors, by a luculent oration he made of the miseries of this, and happiness of that other life, to precipitate themselves […].

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