The word for today is…
troglodyte (noun):
1: a member of any of various peoples (as in antiquity) who lived or were reputed to live chiefly in caves
2: a person characterized by reclusive habits or outmoded or reactionary attitudes
Source : Merriam -Webster
Etymology : Peer into the etymological cave of troglodyte and you’ll find a trogle. But don’t be afraid. Trogle may sound like a scary cave-dwelling ogre, but it’s actually just a perfectly unintimidating Greek root that means “hole” or “cave.” Is troglodyte the only English word to have descended from trogle? Not exactly. Troglodyte and its related adjective troglodytic (meaning “of, related to, or being a troglodyte”) are the only trogle offspring that are widely used in general English contexts, but another trogle progeny, the prefix troglo-, meaning “cave-dwelling,” is used in scientific contexts to form words like troglobiont (“an animal living in or restricted to caves”).
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