The Spanish word 'encarna' (meaning 'incarnates') comes from the Latin verb 'incarnare' meaning 'to become flesh.' The Latin word was formed by combining two elements: the prefix 'in-' meaning 'in, into' and the noun 'caro' meaning 'flesh.' When this word evolved from Latin to Spanish, the 'in-' prefix changed to 'en-', which is a common sound change between these languages. The basic meaning of 'becoming flesh' or 'taking bodily form' has remained consistent from Latin to modern Spanish.

Some related Spanish words include 'carne' (meat), which comes directly from the Latin 'caro' and is a very common word you might already know. You might also recognize 'encarnación' (incarnation) and 'encarnar' (to incarnate, embody), which share the same root. These words all maintain a connection to the concept of flesh or physical embodiment.

In English, we have several related words that come from the same Latin source, including 'incarnate,' 'incarnation,' and 'carnal.' The word 'carnivore' (meat-eater) also contains the same Latin root 'caro' (flesh). Notice how both Spanish and English preserved this Latin root in words relating to flesh, meat, and embodiment.