The Spanish verb 'gustar' comes from the Latin verb 'gustare' meaning 'to taste', which itself was derived from the Latin noun 'gustus' meaning 'taste'. The semantic evolution from 'to taste' to the modern Spanish meaning 'to like' is quite intuitive - when something tastes good to you, you like it. This is why in Spanish, 'gustar' is used to express liking something, but it literally works more like 'to be pleasing to' - for example, 'me gusta la pizza' literally means 'the pizza is pleasing to me' rather than 'I like pizza'.

This semantic shift from physical taste to general pleasure or liking is a common pattern seen in many languages, where a concrete physical sensation becomes metaphorically extended to more abstract concepts of preference and enjoyment.

Several common Spanish words are related to 'gustar' through the same Latin root. The noun 'gusto' means 'pleasure' or 'taste', as in 'con gusto' (with pleasure). The adjective 'gustoso' means 'tasty' or 'pleasing'. There's also 'disgustar' meaning 'to displease' or 'to upset', which combines the root with the negative prefix 'dis-'.

English has several words that share the same Latin root as 'gustar'. The word 'gusto' was borrowed directly from Italian or Spanish, meaning 'enthusiastic enjoyment', as in 'she tackled the project with gusto'. 'Disgust' comes from the same root with a negative prefix, originally referring to an unpleasant taste but now meaning a strong aversion. The more technical terms 'gustatory' (relating to the sense of taste) and 'degustation' (the careful tasting of food) also share this ancestry.