Added 9 October 2026
caliginous
/kəˈlɪdʒɪnəs/ adjective
Latin root: etymon Wiktionary
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about caliginous at Wordnik → Where our words come from →
Origin
Borrowed from Middle French caligineux (“misty; obscure”), or directly from its Latin etymon cālīginōsus (“misty; dark, obscure”). Cālīginōsus is derived from cālīgō, cālīginis (“fog, mist, vapour; darkness, gloom”)) + -ōsus (suffix meaning ‘full of, prone to’ forming adjectives from nouns).
From Wiktionary, via Kaikki.org (CC BY-SA)