frigid
FRIJ-id · adjective
Origin
Frigid comes from Latin frīgidus, meaning 'cold,' which was formed from the verb frīgeō, 'to be cold.' That verb in turn traces back to Latin frīgus, 'cold, coldness,' rooted in Proto-Indo-European *sríHgos.
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Journey
The word passed directly from Latin frīgidus into English as frigid, keeping its core meaning of coldness intact.
Related words
Frigid shares its root with Latin frīgus itself, the noun for 'cold' that gave rise to the verb frīgeō and eventually to frigid.