noun (plural hapax legomena) Etymology: Greek, something said only once Date: 1882 a word or form occurring only once in a document or corpus
HAPAX LEGOMENON
Meaning of HAPAX LEGOMENON in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012