The Spanish word 'sofrito' comes from the verb 'sofreír' meaning 'to lightly fry', which itself derives from the Latin word 'subfrigere' with the same meaning. The Latin word is a compound of 'sub-' meaning 'under' or 'slightly' and 'frigere' meaning 'to fry or roast'. The 'sub-' prefix here indicates a lighter or gentler version of the main action, so 'subfrigere' literally meant 'to under-fry' or 'to fry lightly'. This perfectly describes the cooking technique of sofrito, where ingredients are gently fried as a base for many Spanish dishes.

A simpler related Spanish word is 'freír' (to fry), which comes from the same Latin root 'frigere'. While 'freír' refers to regular frying, 'sofreír' specifically means to lightly fry or sauté, as indicated by the 'so-' prefix (from Latin 'sub-'). The noun 'sofrito' is the past participle of 'sofreír', describing ingredients that have been lightly fried.

The English word 'fry' is a cousin of 'sofrito', as it also derives from Latin 'frigere'. Another related English word is 'fritter', which comes from the same Latin root and refers to fried food. The prefix 'sub-' that appears in 'sofrito' is very common in English words like 'submarine' (under the sea), 'subway' (under the way), and 'subtle' (literally 'finely woven'), always carrying the sense of 'under' or 'slightly'.