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I was thinking about the words pronumeral and pronoun; I realized they both share a prefix, and are both proxies for numerals and nouns. I was wondering if there is any connection between the words since proxy also begins with pro. If proxy is unrelated, is there any reason for the two words to start with pro?

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What did the dictionary say? –  tchrist Feb 21 '12 at 22:10
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I've never heard the word 'pronumeral' before. It seems to mean 'variable' in mathematics. Where have you used the word before? –  Mitch Feb 21 '12 at 22:57
    
@Mitch I'm a mathematician and a programmer, so I use the word all the time. –  annonymously Feb 22 '12 at 1:15
    
@annonymously: does it mean anything -different- from variable? Is it a variable of type integer? –  Mitch Feb 22 '12 at 2:12
    
A pronumeral is any letter that replaces a number (or other object like a vector), that is used to generalise a formula or equation, so that it can be valid using any appropriate object. –  annonymously Feb 22 '12 at 2:22
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1 Answer

up vote 8 down vote accepted

According to the Oxford English Dictionary, one of the senses of the prefix pro- is:

Prefixed to nouns to form nouns and occas. derived adjectives with sense ‘deputizing for, standing in place of’.

This is the case of pronoun and pronumeral. The etymology for this particular sense is:

in these, Latin prō- in the sense ‘for’, ‘instead of’, ‘in place of’, was prefixed to a noun, apparently originally in prepositional construction, as prō consule (one acting) for a consul, afterwards combined with the noun, as prōconsul proconsul n.1; so prōflāmen deputy flamen (compare flamen n.), prōmagister deputy head (compare magister n.), prōpraetor propraetor n.; also in a few names of things, as prōnōmen pronoun n., prōtūtēla deputy-guardianship (compare tutelage n.).

Now, what about proxy? The OED says that it was originally a form of procuracy, which is

the office, action, or capacity of a procurator (procurator n.1 1); management or representation on behalf of another.

The etymology ties this to the Latin prōcūrātio. EtymOnline provides some context into this, citing:

c.1300, "bring about, cause, effect," from O.Fr. procurer (13c.), from L.L. procurare "to take for, take care of," in classical Latin, "manage, take care of;" from pro- "in behalf of" (see pro-) + curare "care for" (see cure).

So, proxy, pronoun and pronumeral do all share the same prefix pro-, although proxy came about its pronoun through procuracy.

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s/share the same pronoun/share the same prefix/ –  tchrist Feb 21 '12 at 22:22
    
@tchrist Thanks, edited. Too many "pro-s" –  simchona Feb 21 '12 at 22:23
    
Still too many "pro-s"! s/profix/prefix/ –  jwpat7 Feb 21 '12 at 23:48
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