What is the fine-grained topic of the following text: Last week, Blather gave way to a footnote, ‘explaining’ the origin of the word *kibosh* by quoting from *Slanguage – a Dictionary of Slang and Colloquial English in Ireland*; ‘…derivative disputed but possibly from Irish *caipÃ­n bÃ¡is*, cap of death, or pitch cap, as employed by British forces against 1798 insurgents; verbal usage other origin and not general Hiberno-English’. Only return the topic.
The origin and possible meanings of the word 'kibosh'.