A word appearing as G. arn “son” in the Gnomish Lexicon of the 1910s (GL/20), also appearing with the same form and meaning in Gnomish Lexicon Slips modifying that document, but with a new plural form eirn (PE13/110). The word reappeared in Early Noldorin Word-lists of the 1920s but there its gloss was changed from “son” to “child” (PE13/137). In the Early Noldorin Dictionary of the 1920s its only gloss was “child” (PE13/160). There is no sign of this word thereafter.
noun. child, child, [G.] son
arn→ arn “son” ✧ PE13/137