(Classical Japanese) Used for anticipating and assuming how it goes when the matter is completed. / (Classical Japanese) Used to state the speaker's expectation if it were the case certainly.

eternally unchanging

news that brings sorrow

A swarm of or an organism that swarms (e.g. bugs), an organism that forms in large groups (e.g. kombu) / elder brother / descendants, great-great-great-great grandchild