arced
crescent or spectrum
multicolor like a rainbow
Irised
A rainbow.The likely word is "rainbow."
虹 /ni ji/ means rainbow in Japanese.
Arc would be my best guess. An arc is like the shape of a rainbow.
The term "rainbow" comes from the Old English word "regn" which means "rain" and "boga" which means "bend" or "arch." This describes the curved shape and appearance of a rainbow often seen after rainfall.
Dens Arcus means rainbow spike in Latin.
irised
Apian
netty
The word is resemble.