有る
ある · aru · JLPT N5 · verb-godan
to have
aru: ARE you there? Then you exist. Got it? Then you have it.
ある sounds like the English word are, the verb of being. Japanese uses it for existence of non-living things and for possession: what is there for you is what you have. The kanji 有 also means have in Chinese (yǒu).
有 — hand 𠂇 + moon/meat 月
Originally depicted a hand holding a piece of meat (月 here is the 'meat' radical, not moon), expressing the idea of possessing something. Over time the meaning broadened from 'to hold/possess' to the general sense of 'to have' or 'there is/exists'.