含有
hányǒu · HSK 4
to contain; including
📦 含 = contain + 有 = have; literally 'contain-have' = to include
含 means to hold in the mouth, extended to 'contain'. 有 means 'to have'. Together 含有 = to contain or have within, used for substances or qualities (e.g. a drink 含有 sugar).
含 — mouth 口 + 今 (jīn, phonetic)
含 is a phono-semantic compound. The 口 (mouth) component gives the meaning — holding something in the mouth — while 今 supplies the sound. From the literal sense of keeping something inside the mouth, it extended to mean 'contain', 'include', or 'hold within'.
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'.