The Spanish word 'esmoquin' (meaning 'tuxedo') has an interesting journey from English origins. It comes from the English word 'smoking' (as in 'smoking jacket'), which was a type of formal evening wear originally worn by men while smoking tobacco to protect their clothes from smoke and ash. The term derives from the English word 'smoke', which in turn comes from Old English 'smeocan' meaning 'to smoke'. When this fashion term was borrowed into Spanish, it was adapted to Spanish phonology, adding an initial 'e-' (common when Spanish borrows words beginning with 's' + consonant) and changing the spelling to match Spanish pronunciation patterns.

There aren't many simpler Spanish words directly related to 'esmoquin' since it's a direct borrowing from English. However, Spanish speakers might encounter related borrowed terms like 'fumar' (to smoke) and 'humo' (smoke), though these come from different Latin roots rather than sharing etymology with 'esmoquin'.

English speakers can easily remember 'esmoquin' by connecting it to the English words 'smoke' and 'smoking'. While the meaning has specialized to refer specifically to a tuxedo in Spanish, you can recall its origin from 'smoking jacket' - a formal piece of clothing historically associated with smoking tobacco. The initial 'e-' in 'esmoquin' is simply Spanish's way of making the English 'sm-' beginning easier to pronounce, following a common pattern in Spanish borrowed words.