The Spanish word 'ratito' meaning 'little moment' comes from 'rato' (meaning 'moment' or 'short time') combined with the diminutive suffix '-ito'. The word 'rato' itself can be traced back to Latin 'raptus' meaning 'seized' or 'snatched', which derives from the Latin verb 'rapere' meaning 'to seize' or 'to snatch'. The semantic evolution from 'seizing' to 'moment' likely developed from the notion of grabbing or catching a brief period of time.

The most obvious related Spanish word is 'rato', which simply means 'moment' or 'short time'. This is the base word from which 'ratito' is formed by adding the common diminutive suffix '-ito'. When you hear Spanish speakers say 'un rato' they mean 'a while' or 'a moment', while 'un ratito' emphasizes that it's just a very short moment.

While not immediately obvious, the English word 'rapid' is actually related to 'ratito', as it also comes from Latin 'rapere' (to seize or snatch). The connection makes sense when you think about something rapid as moving so quickly it seems to 'snatch' time away. Similarly, the English words 'rape' and 'raptor' share this Latin ancestor, though their meanings developed along different semantic paths focusing on the 'seizing' aspect rather than the temporal aspect that developed in Spanish.