dēbellātiō

Meaning

1. Medieval Latintotal defeat
   Non enim solummodo spolia hostium occisorum sua faciunt occupando, sed et civitatem miseram Beneventum sine personarum acceptione disrobant, et, quod pessimum est, innocentes incolas caedunt, et inventis inibi exteris non indulgent. […] Hos enim belli aut debellationis instantis felicius deglutisset eventus.For they not only caused the spoils of the slain enemies to be seized, but also plundered the wretched city of Benevento indiscriminately, and, worst of all, they struck down the innocent inhabitants, and they showed no mercy to the foreigners they found there. […] Yet a happier consequence of the moment of war or total defeat would overwhelm these things.13th century, Saba Malaspina, Rerum Sicularum, book 3, chapter 12:
2. Medieval Latinin pluralhostilities, battles, assaults
   Postpositis ergo debellationibus, suaserunt maiores natu Aruirago promissionibus Claudii acquiescere.The hostilities having ceased, the (briton) elders persuaded Aruiragus to comply with Claudus' promises.12th century, Geoffrey of Monmouth, De Gestis Britonum IV

Declension

Origins

From Classical Latin dēbellō (“conquer, subjugate”) + -tiō (suffix forming nouns).