浮ぶ
うかぶ · ukabu · JLPT N2 · verb-godan
to float
🛟 浮 = 氵 water + 孚: something held up on the water floats
The water radical 氵 marks 浮 as something to do with water. ukabu is to float or rise to the surface, and an idea can rise too: 考えが浮ぶ means a thought comes to mind. Sound hook: oo, a cab-u bobbing up.
浮 — water radical 氵 + 孚 (phonetic, 'hatch/trust')
浮 is a semantic-phonetic compound. The water radical 氵 gives the meaning 'water,' while 孚 supplies the sound and originally depicted a bird hatching an egg. Together they convey something resting on water, hence 'to float.'