LATIN DICTIONARYLexicon Latīnum
Allen & Greenough · Part First — Words and Forms › Formation of Words

§239. Names of Actions and Abstract Nouns

Nouns denoting acts, or means and results of acts, are formed from roots or verb-stems by the use of the suffixes—

-men, N.; -mentum, N.; -mōnium, N.; -mōnia, F.

ag-men, line of march, band;AG, root of agere, to lead.
regi-men, rule; regi-mentum, rule;regi- (rege-), stem of regere, to direct.
certā-men, contest, battle;certā-, stem of certāre, to contend.

So

colu-men, pillar; mō-men, movement;nō-men, name; flū-men, stream.
testi-mōnium, testimony;testārī, to witness.
queri-mōnia, complaint;querī, to complain.

-mōnium and -mōnia are also used as secondary, forming nouns from other nouns and from adjectives: as, sāncti-mōnia, sanctity (sānctus, holy); mātrimōnium, marriage (māter, mother.)

(stem almo-), fostering; Almōn, a river near Rome; alimōnia, support. But the last was formed directly from alō when -mōnia had become established as a supposed primary suffix.

J. H. Allen and J. B. Greenough, New Latin Grammar (Boston: Ginn, 1903). Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities.