The Spanish word 'metiche' comes from combining the verb 'meter' (meaning 'to put or insert') with the pejorative suffix '-iche'. The verb 'meter' itself derives from the Latin word 'mittere', which meant 'to send or throw'. When combined with the pejorative suffix '-iche', the resulting word 'metiche' refers to someone who metaphorically 'inserts' themselves where they don't belong - in other words, a nosy person or busybody.

The most common related Spanish word is the verb 'meter', which means 'to put' or 'to insert'. While 'meter' is a neutral term for physically putting something somewhere, 'metiche' took on a negative connotation through the pejorative suffix to describe someone who 'puts' themselves into other people's business. You might also recognize this root in words like 'entremeterse' (to meddle) or 'entremetido' (meddlesome).

While not immediately obvious, 'metiche' is distantly related to several English words through the Latin root 'mittere' (to send). These include 'mission' (something sent or directed), 'missile' (something thrown or sent), 'admit' (to send in), and 'permit' (to send through or allow). The connection becomes clearer when you think about how something being 'sent' is similar to something being 'put' somewhere, though the Spanish 'meter' focused more on the 'putting' aspect while English words maintained more of the 'sending' sense.