The Spanish word 'fascistoide' meaning 'fascist-like' or 'having fascist tendencies' comes from combining the Spanish word 'fascista' (fascist) with the suffix '-oide' meaning 'resembling' or 'similar to'. The word 'fascista' itself can be traced back through Italian, where 'fascista' referred to a member of Mussolini's Fascist movement. This came from Italian 'fascio' meaning 'bundle' or 'political group', which ultimately derives from Latin 'fascis' meaning 'bundle of rods' - a symbol of authority in ancient Rome that became the emblem of Italian Fascism.

The suffix '-oide' is commonly used in Spanish to create adjectives that describe something as having characteristics of the root word, but perhaps in a less intense or complete way. When combined with 'fascista', it creates a term that describes someone or something that shows some fascist-like characteristics without necessarily being fully fascist.

Some related Spanish words include the simpler term 'fascista' (fascist), which is more commonly used and straightforward. The suffix '-oide' appears in many other Spanish words like 'humanoide' (humanoid) or 'androide' (android), always carrying the meaning of 'resembling' or 'similar to' the root word.

English speakers might recognize the connection to words like 'fascist' and 'fascism', which share the same Latin root 'fascis'. The '-oid' suffix in English works similarly to Spanish '-oide', appearing in words like 'humanoid' or 'android'. This shared pattern can help English speakers understand that 'fascistoide' describes something that has fascist-like qualities.