The Spanish word 'chinita' comes from combining the word 'chino' (meaning 'small' or 'dear') with the diminutive suffix '-ita'. The base word 'chino' itself comes from the Quechua word 'čína', which originally meant 'female' or 'servant'. When adopted into Spanish, 'chino' took on the meaning of 'small' or 'dear', and adding the diminutive suffix '-ita' intensifies this meaning to 'very small' or 'very dear'.

This is a great example of how Spanish frequently uses diminutive suffixes like '-ita' (for feminine nouns) to express smallness, endearment, or affection.

The simpler and more common Spanish word 'chino/china' (without the diminutive) is related to 'chinita'. While 'chino' can mean 'small' or 'dear' in some contexts, it's more commonly known today as meaning 'Chinese' or referring to curly hair. This semantic split shows how words from the same origin can develop different meanings over time.

While there aren't direct English cognates from the Quechua origin, English speakers might be familiar with the word 'China' (the country), though this is actually unrelated despite the similar spelling. The similarity is purely coincidental, as the English word 'China' comes from a completely different etymology (ultimately from the Qin dynasty).