Linguae.
The plural of vertebra is vertebrae.
In English, "venuses".In Latin, which is the word's language of origin, the plural is veneres.
The plural form of language is languages.
The word is of Latin origin and the plural is addenda.
Forum---Plural Form Forums,Foreign Plural Form Forumina
Cubicula.
The Latin masculine noun draco (a snake) has the nominative plural form dracones
Gladioli (actual Latin plural) or gladioluses (Anglicized).
The first known use of the word was in 1542. It was most likely derived from the Latin verb "appendere." Singularly, it is appendix. In plural form it can either be appendices or appendixes. Both are correct.
The plural form of language is languages, e.g. "They speak several different languages at their home.
Actually, the plural form radiuses is accepted as correct and has found it's way into dictionaries (see the link below). The word radius and the plural radii are derived from the Latin word radius, a word for the spoke of a wheel. The plural form is a standard form for a plural in Latin.
culinae