The Spanish verb 'saber' (to know) comes from the Latin word 'sapere', which had two interesting meanings: 'to taste' and 'to be wise'. This connection between tasting and knowing reflects an ancient metaphorical link between physical and mental experiences. Just as we taste food to understand its flavor, we metaphorically 'taste' or experience knowledge to understand it. Over time, as the word evolved from Latin to Spanish, the meaning focused primarily on the mental aspect of knowing or having knowledge.

A common related Spanish word is 'sabio' (wise person, sage), which maintains a closer connection to the 'wisdom' aspect of the original Latin word. The word 'sabor' (taste, flavor) is also related, preserving the original 'taste' meaning of Latin 'sapere'. This family of words shows how the original Latin word's dual meaning of 'taste/wisdom' split into different but related concepts in modern Spanish.

In English, we have several words that come from the same Latin root 'sapere'. The word 'sapient' (wise, having wisdom) is directly related, though it's somewhat formal or literary. The more common word 'sage' (wise person) also comes from this Latin root. Even the word 'savor' (to taste or enjoy food slowly) comes from the same source, reflecting the original 'taste' meaning of 'sapere'. The word 'savvy' (practical knowledge or understanding) is also distantly related, having come through French from the same Latin root.