The Spanish word 'sudado' comes from the Latin verb 'sudare', meaning 'to sweat'. This Latin word evolved into the Spanish verb 'sudar' (also meaning 'to sweat'), and when combined with the Spanish past participle suffix '-ado', it forms 'sudado', meaning 'sweated' or 'sweaty'.

Some related Spanish words that might be easier to remember include the verb 'sudar' itself, which is commonly used to mean 'to sweat'. You might also encounter 'sudor' (sweat), 'sudoroso' (sweaty), or 'sudadera' (sweatshirt) - all sharing the same root related to sweating.

While not immediately obvious, the English word 'sudorific' (causing or inducing sweat) comes from the same Latin root 'sudare'. This technical term is mostly used in medical contexts. Another related English word is 'exude', which originally meant 'to sweat out' and comes from Latin 'exsudare' (ex- 'out' + sudare 'to sweat').