The Spanish word 'coyote' comes directly from the Nahuatl (Aztec) word 'coyotl', meaning 'coyote'. This is one of many words that Spanish borrowed from the indigenous languages of the Americas during the colonial period. The word maintained its meaning while being adapted to Spanish pronunciation patterns, dropping the final '-l' which is not typical in Spanish words.

Since 'coyote' entered Spanish directly from Nahuatl and is itself a relatively simple and common word in Spanish, there aren't any simpler Spanish words that share its etymology.

The English word 'coyote' was borrowed from Spanish 'coyote', making it ultimately derived from the same Nahuatl source. This is one of many words that English acquired through Spanish from indigenous American languages, along with words like 'chocolate' (from Nahuatl 'xocolatl'), 'tomato' (from Nahuatl 'tomatl'), and 'avocado' (from Nahuatl 'ahuacatl').