杞憂(きゆう)

groundless worry

杞人(きじん)

a person prone to needless worry

杞国(きこく)

the ancient state of Qi

杞柳(こりゅう)

river willow

杞梓(きし)

a talented person

枸杞(くこ)

goji berry; wolfberry

枸杞子(くこし)

goji berries used in traditional medicine

枸杞茶(くこちゃ)

goji berry tea

枸杞酒(くこしゅ

それは杞憂(きゆう)にすぎなかった。

It was nothing more than needless worry.

杞柳(こりゅう)の枝(えだ)で籠(かご)を編(あ)む。

Weave a basket from river willow branches.