possess, have, exist, happen, occur, approx
有 centers on the idea of something being present or held: possessing, having, existing, or an event happening. The 'approx' sense is a natural extension of something being 'there' in a rough sense.
to be; to exist; to live
thank you; thanks
famous; well-known
possession; ownership
valid; effective
joint ownership; co-ownership; sharing (e.g. a viewpoint)
grateful; thankful; welcome; appreciated; evoking gratitude
existence
fee-charging; paid; not free
to have; to possess; to own; to be endowed with
advantageous; favourable; better; stronger
possession; retention; maintenance; holding; keeping
celebrity; famous person; public figure; big name
characteristic (of); peculiar (to)
organic
existence or nonexistence; presence or absence
influential; prominent; leading
able; capable; competent; talented; efficient
harmful; hazardous
guilt; culpability
national ownership; state ownership; government ownership
useful; helpful
finite; limited
beneficial; profitable; useful; helpful; instructive
有 originally combined a hand-like shape (now ナ) with 月 (meat/flesh), suggesting holding meat, hence possession or existence. The modern form retains the general structure.
The top part looks like a hand (ナ) holding a piece of meat (月). When you hold something, you possess it, and it exists with you.
For ユウ, imagine you holding a piece of meat: 'you' -> ユウ, and you possess it.