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

§238. Names of Actions and Abstract Nouns

Abstract Nouns and Names of Actions are formed from roots and verb-stems by means of the endings—

a. Added to roots or forms conceived as roots—

NOM.-or, M.-ēs, F.-us, N.
GEN.-ōris-is-eris or -oris
STEMōr- (earlier ōs-)i-er- (earlier ( e/os-)
tim-or, fear;timēre, to fear.
am-or, love;amāre, to love.
sēd-ēs, seat;sedēre, to sit.
caed-ēs, slaughter;caedere, to kill.
genus, birth, race;GEN, to be born (root of gignō, bear).

b. Apparently added to roots or verb-stems—

NOM.-iō, F.-tiō (-siō), F.-tūra (-sūra), F.-tus, M.
GEN.-iōnis-tiōnis (-siōnis)-tūrae (-sūrae)-tūs (-sūs)
STEMiōn-tiōn- (siōn-)tūrā- (sūrā-)tu- (su-)
leg-iō, a collecting (levy), a legion;legere, to collect.
reg-iō, a direction, a region;regere, to direct.
vocā-tiō, a calling;vocāre, to call.
mōlī-tiō, a toiling;mōlīrī, to toil.
scrīp-tūra, a writing;scrībere, to write.
sēn-sus (for † sent-tus), feeling;sentīre, to feel.

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.