The plural form of the noun 'crux' is cruxes.
The plural noun 'cruxes' is a 'regular plural' form, a word that forms its plural by adding an 's' or an 'es' to the end of the word.
Forum---Plural Form Forums,Foreign Plural Form Forumina
The plural form of apparatus is apparatuses. It has no foreign plural.
The foreign plural form of symposium is symposia, while the English plural form is symposiums.
data IS the plural form of datum.
The word Cruz is a proper noun, a person's name, and is always capitalized. The plural form is Cruzes, for example:The Cruzes are having a barbecue.
crosses
Ova is the plural form. The singular form is ovum.
Librettos
octopi
Ova is the plural form. The singular form is ovum.
The plural form of the noun 'bandit' is bandits.The noun 'bandits' is a 'regular plural' form, a word that forms its plural by adding an 's' or an 'es' to the end of the word.
virtuosas