|haˌpakslə̇ˈgäməˌnän, |hāˌpak-, |häˌpäk-, -_nən noun
( plural hapax legome·na -_nə, -ˌnä)
Etymology: Greek, something said only once
: a word or form evidenced by a single citation : a word or form occurring once and only once in a document or corpus