hapax legomenon |ˌhapaks ləˈɡäməˌnän|
noun (pl. hapax legomena |ləˈɡämənə| )
a term of which only one instance of use is recorded.
ORIGIN
mid 17th cent.: Greek, ‘a thing said once,’ from hapax ‘once’ and the passive participle of legein ‘to say.’ - - created on 2016-03-09 01:27:24

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