noun, noun or participle which takes 'suru'
sleeping together; lying down together
Archaic or literary term for sleeping together, often with a romantic or intimate connotation. Rare in modern usage; typically encountered in classical literature or poetry.
古い和歌に「添い臥し」という言葉が使われている。
The word 'soibushi' is used in an old waka poem.
物語の中で、二人は添い臥しをしたと記されている。
In the tale, it is recorded that the two slept together.