The Spanish verb 'gatear' (to crawl) comes from the Spanish noun 'gato' (cat) combined with the verbal suffix '-ar'. The noun 'gato' itself derives from Latin 'cattus' meaning 'cat'. The verb 'gatear' literally means 'to act like a cat' or 'to move like a cat', which evolved to specifically mean 'to crawl' in modern Spanish, as the motion resembles how cats move low to the ground.

The most obvious related Spanish word is 'gato' (cat), which is a very common word that beginning Spanish students learn early on. Understanding that 'gatear' literally means 'to move like a cat' can help remember its meaning of 'to crawl'.

The English word 'cat' is related to 'gatear' through their shared ancestry with Latin 'cattus'. While the English word maintained its meaning as the animal, the Spanish derivative developed into a verb describing movement characteristic of cats. You can also see the connection in similar English words like 'catty' or 'cattish', which describe cat-like behavior, though these refer to personality traits rather than physical movement.