Places or seals something in a tomb, or buries it so deeply that it's completely enclosed and hidden away.
From en- (put into) + tomb (burial chamber). The prefix en- comes from Old French and Latin, while tomb derives from Latin tumba, ultimately from Greek tymbos. The word evolved from literal burial practices to metaphorical meanings of permanent enclosure.
When we say something 'entombs' an idea or memory, we're using an ancient burial metaphor that shows how languages treat forgotten knowledge like the dead—sealed away and inaccessible. Egyptologists actually use this word constantly when describing how sand entombed pharaohs for millennia!
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