cancrum oris

Etymology
From, from and , genitive singular of. The Latin phrase itself is first attested in a source that gives it as a translation of an English common name "mouth canker" or "canker of the mouth".

Noun

 * 1)  noma, a gangrenous disease of the face

Etymology
From and, genitive singular of. First attested in 1649 (see below) in a source that gives it as a translation of an English common name "mouth canker" or "canker of the mouth", and in a context where it is accusative singular (and therefore could be the masculine accusative singular of ). Later authors' interpretation of it as a neuter singular form may be a grammatical blunder.

Noun

 * 1)  cancrum oris