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The Allen and Greenough is still under construction;
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Syntactic Compounds.
 
266.
 In many apparent compounds, complete words  - 
not stems  -  have grown together in speech.  These are not strictly
compounds in the etymological sense.  They are called Syntactic Compounds.
 Examples are: -  
a. Compounds of fació, factó, with an actual or
formerly existing noun-stem confounded with a verbal stem in é-.  These are causative in
force:  
-  
- cónsué-fació,
habituate (cf.  cónsué-scó, become accustomed).  
- cale-fació,
cale-factó, to heat (cf.  calé-scó, grow warm).  
b. An adverb or noun combined with a verb:
-  
-  
- bene-dícó
(bene, well, dícó, speak), to
bless.  
- satis-fació (satis, enough, fació, do), to do enough
(for).  
c. Many apparent compounds of stems: -  
-  
- fide-iubeó (fide, surety, iubeó, command), to give
surety.  
- mán-suétus
(manuí, to the hand, suétus, accustomed),
tame.  
- Márci-por (Márcí puer), slave of
Marcus.  
- Iuppiter (Iú, old vocative, and pater), father Jove.  
- anim-advertó (animum advertó), attend to,
punish.  
d. A few phrases forced into the ordinary
inflections of nouns: -  
-  
- pró-cónsul,
proconsul (for pró cónsule, instead of a consul).  
- trium-vir, triumvir
(singular from trium virórum).
 
- septen-trió, the
Bear, a constellation (supposed singular of septem triónés, the Seven Plough-Oxen).  
In all these cases it is to be observed that words, not
stems, are united.  
 
 
 
