The Spanish pronoun 'él' (meaning 'he' or 'him') comes from the Latin demonstrative pronoun 'ille' meaning 'that' or 'that one'. This evolution shows an interesting semantic shift from pointing out something at a distance ('that one') to specifically referring to a male person ('he'). The phonetic change from Latin 'ille' to Spanish 'él' involved the simplification of the word and the loss of the final syllable.

Several common Spanish words are related to 'él' through the Latin 'ille'. These include the articles 'el' (the) and 'la' (the feminine form), as well as 'ella' (she), which all developed from different forms of the Latin demonstrative 'ille'. This family of words forms the core of Spanish pronouns and articles, making them essential building blocks of the language.

While English 'he' is not related to Spanish 'él' (they come from different Proto-Indo-European roots), there are some English words that show a parallel development in how demonstratives can become pronouns. For instance, the English words 'they', 'them', and 'their' actually come from Old Norse demonstrative pronouns, similar to how 'él' developed from a Latin demonstrative. This shows how languages often follow similar patterns in developing their pronoun systems.