kite, (kokuji)
凧 centers on a kite: a light frame covered with cloth or paper that flies in the wind. It is a Japanese kokuji created specifically for this meaning.
凧 is a Japanese kokuji, combining the wind enclosure ⺇ with 巾 (cloth), suggesting a cloth object that catches the wind—a kite.
The wind enclosure ⺇ wraps around a cloth 巾, like a kite made of fabric soaring in the sky.
For いかのぼり, picture a squid (いか) flying up (のぼり) like a kite: いかのぼり is the kite rising, and the cloth 巾 catches the wind.
—