obituary
訃 centers on a formal notice of death: an obituary or death announcement.
訃 combines 言 (word, speech) with 卜, which likely contributes the sound and may relate to divination or announcement. The character expresses a formal verbal notice, specifically of death.
Words 言 beside a divination rod 卜 suggest a solemn announcement. Picture a formal written notice being posted to inform the community of a death.
For フ, imagine a funeral notice fluttering onto a bulletin board: the soft 'fu' sound of the paper cues フ, and the notice is an obituary.