The story
- Proto-Indo-European · derived from*kelh₂-“to beat; to break”
- Latin · derived fromcalamitōsus“destructive, disastrous, ruinous, calamitous”
- French · borrowed fromcalamiteux“calamitous”
- English todaycalamitous
Borrowed from French calamiteux (“calamitous”) (see French -eux, English -ous), from Latin calamitōsus (“destructive, disastrous, ruinous, calamitous”), a contraction of calamitātōsus, from calamitāt- + -ōsus (suffix meaning ‘full of; prone to’ forming adjectives from nouns); calamitāt- is the oblique stem of calamitās (“disaster, misfortune, calamity; damage, harm; loss”), from *calamis (“damaged”) (ultimately from Proto-Indo-European *kelh₂- (“to beat; to break”)) + -tās (suffix forming abstract nouns denoting a condition or state). By surface analysis, calamity + -ous.
Words from the same roots
Proto-Indo-European*kelh₂- all →
Etymology from Wiktionary, CC BY-SA 4.0.