The Spanish word 'primavera' meaning 'spring' comes from Vulgar Latin 'primavera', which was formed by combining two Latin words: 'prima' meaning 'first' and 'ver' meaning 'spring'. This compound literally meant 'first spring' or 'early spring', which eventually simplified to just mean 'spring' in general.

The Spanish word 'primero/primera' meaning 'first' shares the same Latin root 'prima' with 'primavera'. You can think of spring as being the 'first' season when new life begins to emerge after winter.

The English word 'prime' and 'primary' are related to the 'prima' part of 'primavera', all coming from the Latin word for 'first'. While English uses the Germanic-derived word 'spring' for the season, we can see this Latin root 'ver' meaning 'spring' in English words like 'vernal' (relating to spring) as in 'vernal equinox'.