It's clear that there is a distinct difference between "pro-" which is against anti- and used for example as "you are pro the manifest", and the other word "support" which is used such as in "He supports the team to win".
Both of these have a difference in meaning, I think, while their meanings are similar.
But it's difficult to explain it in words.
What do you think?
I know hot to use them, that is their usages, is different, of course, while one of them is usually a verb and the other is a preposition or prefix etc.
Best Answer
Please remember that the Latin origin of 'pro' literally meant 'for'
'I am for (this or that)' does convey a similar idea but is a very different part of speech from 'I support (this or that)'
Despite its clear origin, English ‘pro’ is centuries away from being truly equivalent to ‘pro’ in Latin.
English ‘pro’ is almost exclusively used as part of compound adjectives, such as ‘I am a pro-Brexit voter’ not ‘I am pro Brexit’ or ‘I have pro-immigration views’ rather than ‘I am pro immigration.’
The other principal instance would be in formal systems of voting, as in councils taking decisions on local government, where rather than ‘yes or no’ members might be asked to vote ‘pro or anti’ in the same way Members of Parliament are asked to vote not ‘yes or no’ but ‘aye or nay’
One would would not say 'you are pro the manifest' and one would use 'He supports the team' without adding 'to win'.