The Spanish word 'telón' (meaning 'theater curtain') comes from the Spanish word 'tela' (meaning 'fabric') combined with the augmentative suffix '-ón'. The word 'tela' itself derives from the Latin word 'tela' meaning 'woven fabric', which in turn comes from the Latin verb 'texere' meaning 'to weave'. The augmentative suffix '-ón' gives the sense of something large, so 'telón' literally means 'large fabric', which evolved to specifically refer to the large curtain used in theaters.

A simpler and more common Spanish word that's directly related to 'telón' is 'tela', meaning 'fabric' or 'cloth'. This is actually the base word from which 'telón' was formed. While 'tela' refers to any kind of fabric or cloth, 'telón' specifically came to mean the large curtain used in theaters through the addition of the augmentative suffix.

Several English words are related to 'telón' through the shared Latin root 'texere' (to weave). These include 'textile', 'texture', and 'text' (which originally referred to the weaving of words). The connection is particularly clear in 'textile', which refers to woven fabrics and materials, sharing the same fundamental concept as the Spanish 'tela' and 'telón'.