The Spanish verb 'salar' (meaning 'to salt') has a straightforward etymology. It comes from combining the Spanish noun 'sal' (meaning 'salt') with the common Spanish verb suffix '-ar'. The Spanish word 'sal' itself comes directly from the Latin word 'sal', which also meant 'salt'.

This is a clear example of how Spanish creates verbs from nouns - by adding the '-ar' ending to create a verb meaning 'to apply or add' whatever the noun represents. In this case, 'sal' (salt) + '-ar' = 'salar' (to salt)

The most obvious related Spanish word is the simpler noun 'sal' (salt), from which 'salar' is directly derived. Other common related words include 'salado' (salty), 'salero' (salt shaker), and 'salina' (salt flat/mine). All these words share the same Latin root 'sal' and form a family of words related to salt.

English has several words related to 'salar' through the same Latin ancestor 'sal'. The most obvious is the word 'salt' itself, which comes from Germanic roots but is ultimately related to Latin 'sal'. Other English words include 'salary' (which comes from Latin 'salarium', originally meaning 'salt money' as Roman soldiers were sometimes paid in salt), 'salad' (originally referring to salted vegetables), and 'saline' (containing salt).