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Webster 1913 Edition
Debellate
De-bel′late
,Verb.
 T.
 [L. 
debellatus
, p. p. of debellare 
to subdue; de- 
+ bellum 
war.] To subdue; to conquer in war. 
[Obs.] 
Speed.
 Definition 2025
debellate
debellate
English
Verb
debellate (third-person singular simple present debellates, present participle debellating, simple past and past participle debellated)
-  (obsolete, transitive) To subdue; to conquer in war.
- (Can we find and add a quotation of Speed to this entry?)