different between nunation vs nudation

English

nun +? -ation. See nun (“Semitic letter”).

nunation (countable and uncountable, plural nunations)

(linguistics) The use of a suffix ("-n") signifying a lack of syntactical definiteness of the noun or adjective in standard Arabic. It is written as a diacritic over the final letter.
??????? (nahr-un, “a river”)
??????? (malik-un, “a king”)
(linguistics) The use of a suffix ("-n") in dual forms in Akkadian.

From Latin nudatio, from nudare (“to make naked”), from nudus (“naked”). See nude.

nudation (countable and uncountable, plural nudations)

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