curious
/ˈkjʊəriəs/·큐리어스·adjective
eager to learn or know
LatinCEFR A2
Root
Latin 'cura' (care) + -ous (full of)
Latin curiosus (careful, inquiring) → Old French curios → English curious (14th c.)
In a word
Latin cura = 'care, concern'. Curiosus meant "full of care" — caring enough to want to know. The same cura branches into cure (to care for, to heal), curate (one who cares), accurate (carefully done). Curiosity, by root, is "minding deeply" — the opposite of indifference is curious.
Examples
Children are naturally curious.
I'm curious about her decision.
It's curious that no one noticed.
Related
curiositycurecurateaccurateprocure