roughly made casket; quickly made coffin
Historical term for a simple, hastily constructed coffin, often used in times of epidemic or war when proper funerary arrangements were not possible.
During the cholera epidemics of the Edo period, roughly made caskets were reportedly used in large numbers.
Compound of 早 (haya, 'quick, hasty') and 桶 (oke, 'bucket, tub'), referring to a tub-like container made quickly to serve as a coffin.