to state to, to announce
尃 centers on formally conveying information: stating something to others or making an announcement.
尃 is thought to combine 甫 (which may contribute sound) with 寸 (hand), suggesting the act of spreading or announcing something by hand. The exact historical development is uncertain.
The top 甫 looks like a sprout pushing up, and the bottom 寸 is a hand. Imagine a hand holding up a sprout to announce new growth to everyone.
For フ, picture a hand (寸) holding a sign with the letter 'F' (フ) to state an announcement: F -> フ.