also: あわく
nidan verb (lower class) with 'ku' ending (archaic), intransitive verb
Archaic intransitive verb meaning to physically collapse or figuratively decline/fall. Found in classical Japanese texts; not used in modern speech.
nidan verb (lower class) with 'ku' ending (archaic), intransitive verb
neglect; be lax
Archaic intransitive verb meaning to neglect one's duties or be lax in conduct. Rare and limited to historical contexts.
In classical language, it was used like 'the house collapses'.
In old documents, the expression 'neglect one's duties' can be found.