Definify.com
Webster 1913 Edition
Foment
Fo-ment′
,Verb.
 T.
 [
imp. & p. p. 
Fomented
; p. pr. & vb. n. 
Fomenting
.] [F. 
fomenter
, fr. L. fomentare
, fr. fomentum 
(for fovimentum
) a warm application or lotion, fr. fovere 
to warm or keep warm; perh. akin to Gr. [GREEK] to roast, and E. bake
.] 1. 
To apply a warm lotion to; to bathe with a cloth or sponge wet with warm water or medicated liquid. 
2. 
To cherish with heat; to foster. 
[Obs.] 
Which these soft fires . . . 
foment 
and warm. Milton.
3. 
To nurse to life or activity; to cherish and promote by excitements; to encourage; to abet; to instigate; – used often in a bad sense; 
as, to 
. foment 
ill humorsLocke.
  But quench the choler you 
foment 
in vain. Dryden.
 Exciting and 
fomenting 
a religious rebellion. Southey.
Webster 1828 Edition
Foment
FOMENT'
,Verb.
T.
  1.
  To apply warm lotions to; to bathe with warm medicated liquors, or with flannel dipped in warm water.2.
  To cherish with heat; to encourage growth.  [Not usual.]3.
  To encourage; to abet; to cherish and promote by excitements; in a bad sense; as, to foment ill humors.So we say, to foment troubles or disturbances; to foment intestine broils.
Definition 2025
foment
foment
English
Verb
foment (third-person singular simple present foments, present participle fomenting, simple past and past participle fomented)
-  To incite or cause troublesome acts; to encourage; to instigate.
- He was arrested for fomenting a riot; after all, it's bad enough being in a riot but starting one is much worse.
 
 -  (medicine) To apply a poultice to; to bathe with a cloth or sponge.
-  1904, Arthur Conan Doyle, The Adventure of the Abbey Grange, Norton (2005), page 1178,
- The maid had entered with us, and began once more to foment the bruise upon her mistress's brow.
 
 
 -  1904, Arthur Conan Doyle, The Adventure of the Abbey Grange, Norton (2005), page 1178,
 
Derived terms
Translations
to incite or cause
  | 
(medicine) to apply a poultice to
Noun
foment (plural foments)
-  Fomentation.
-  Julian Ralph
- He came in no conciliatory mood, and the foment was kept up.
 
 
 -  Julian Ralph