Third person singular present tense of dissever; he/she/it separates or cuts apart.
From dissever + -s (third person singular). Regular verb conjugation in English adds -s to indicate third person singular present tense, a pattern from Old English verb morphology.
English verb conjugation is remarkably simple compared to Romance languages—we just add -s for he/she/it, while Spanish and French need different word endings for every person. This simplicity is why English is easier for many learners.
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