noun
Archaic noun for bedding or a bed. Rarely used in modern Japanese; encountered mainly in classical texts.
See also: 枕席
古い文献では「枕籍」が寝具を指すことがある。
In old documents, 枕籍 can refer to bedding.
noun, noun or participle which takes 'suru'
sleep together; share a bed; use as pillow
Archaic verb/noun meaning to sleep together in the same bed, sometimes with the nuance of using each other's bodies or books as pillows. The specific nuance depends on context; sense 3 (bodies as pillow) and sense 4 (books as pillow) are literary extensions. All are obsolete in modern speech.
漢詩では、友と枕籍する様子が詠まれることがある。
In Chinese poetry, scenes of friends sleeping together using each other as pillows are sometimes depicted.
「枕籍」は書物を枕にして共寝する意でも用いられた。
枕籍 was also used to mean sleeping together with books as pillows.