curious
adjective
- tending to ask questions, or to want to explore or investigate; inquisitive
- strange; 'curiouser and curiouser'
Wiktionary
adj
Etymology: Etymology tree English curi(um) Proto-Indo-European *h₃ed- Proto-Indo-European *-os Proto-Indo-European *h₃édosder.? Proto-Italic *-ōtsos or *-otsos Latin -ōsus Old French -usbor. Middle English -ous English -ous English curious From curi(um) + -ous.
- Containing or pertaining to trivalent curium.