apropos
UK: ˌæprəˈpəʊ | US: ˌæprəˈpoʊ
adj. appropriate or relevant to a particular situation
prep. concerning or regarding
The word "apropos" originates from the French phrase "à propos," meaning "to the purpose." It entered English in the 17th century, retaining its French spelling and sense of relevance. The morpheme "a" derives from Latin "ad" (to/toward), while "propos" comes from Latin "propositum" (purpose or theme). Over time, it evolved into an adjective and preposition in English, emphasizing suitability or connection to a topic.
His remarks were apropos to the discussion.
Apropos your earlier question, here’s the data you requested.
She made an apropos comment during the meeting.
The lawyer’s argument was entirely apropos to the case.
Apropos of nothing, he suddenly changed the subject.