The prefix pro- in the word pronoun means taking the place of, substituting for. A pronoun is a word that takes the place of, substitutes for a noun.
For parents.
parilis, or par mean "equal".
If you're asking what it means, it's a preposition, "for." Ex. Pro Deo et Patria = For God and Country
"Pro Deo et Patria" translates to "For God and country" in English.
pro
'pro': Proceed: PRO ceed (pro sede') To go forward; advance
For the [public] good is the English equivalent of 'pro bono [publico]'. In the word by word translation, the preposition 'pro' means 'for'. The neuter gender noun 'bono', in the ablative case as the object of the preposition, means 'the common weal, supreme good'. The adjective 'publico' means 'public'.
Pro is a shortened version of the word professional, so is not a prefix in that case. Fessional, in urban slang, means a person that thinks they are good at something, but are not.
"Pro Deus" is ungrammatical in Latin. It doesn't mean much of anything.
The phrase means," Let us pray for the Pope"
The English translation of the Latin phrase 'Pro cunctis mihi cari' is For all things dear to me. In the word-by-word translation, the preposition 'pro'means 'for'. The adjective 'cunctis' means 'dear'. The pronoun 'mihi' means 'to me'. The adjective 'cari' means 'dear'.
It probably means that someone has used an on line translator to try to translate English to Latin. They don't work. 'Questio pro diligo' is gibberish.