草: grass

草くさの上うえにごろりと寝転ねころぶ。

I stretch out lazily on the grass.

屋根やねは、草くさや木きの皮かわ、土つちなどでおおいました。

The roofs were covered with grass, tree bark, earth, and the like.

麻あさなどの草くさの繊維せんいで編あんだ布ぬの、つまり編布あんぎんの服ふくもあったようです。

It seems there were also clothes made of cloth plaited from plant fibers such as hemp, that is, angin cloth.

野焼のやきは、地面じめんの上うえで、土器どきのまわりに草くさや木きを置おいて火ひをたく方法ほうほうです。

In open firing, you place grass and wood around the pots on the ground and burn them.