Retire, dismiss or relieve someone, usually senior, of duty or employment. / Dispose something old and no longer useful. / Get rid of someone or something.

(honorific) father

(honorific) father

finally, at last / (with a negative) in the end

many years

(used with negatives) for a long time

many years / a long lifespan

to end (something), to conclude (something), to finish (something), to quit (something)

end; conclusion; finish

something one wants to have no involvement in / (informal) Clipping of 御免なさい (gomennasai, “I'm sorry”).