支える: to support

けがをした祖母そぼを、腕うでで支ささえて歩あるいた。

I supported my injured grandmother with my arm as we walked.

水路すいろもあり、木きの杭くいや板いたで、あぜや水路すいろの岸きしをささえていました。

There were also water channels, and wooden stakes and boards held up the banks of the ridges and channels.