←
Ancient Greek ἰδέα (derived)
←
Ancient Greek εἴδω (mention)
←
Proto-Indo-European *weyd- (root)
→
English ideal (mention)
→
Japanese アイデア (borrowed)
→
Japanese アイディア (borrowed)
→
Norwegian Bokmål begrep (link)
→
Tok Pisin aidia (derived)
→
Tocharian B īme (cognate)
→
Chinese idea (borrowed)