The Spanish word 'locutor' (meaning 'announcer' or 'broadcaster') comes from the Latin word 'locutor' meaning 'speaker'. The Latin 'locutor' was formed by combining the verb 'loqui' ('to speak') with the agent suffix '-tor', which was used to create nouns referring to someone who performs an action. So literally, a 'locutor' is 'one who speaks'.

Over time, the meaning in Spanish has become more specific, referring particularly to professional speakers like radio or television announcers and broadcasters, rather than speakers in general.

Several common Spanish words share the same Latin root 'loqui'. For example, 'locución' (speech, phrase), 'elocuente' (eloquent), and 'interlocutor' (someone you're having a conversation with). All these words maintain a connection to the concept of speaking or verbal communication.

English has borrowed many words from the same Latin root 'loqui'. Some common examples include 'eloquent' (speaking beautifully or persuasively), 'loquacious' (talkative), 'colloquial' (conversational), and 'soliloquy' (speaking to oneself). The '-tor' suffix is also familiar to English speakers from words like 'actor', 'director', and 'conductor' - all referring to someone who performs an action.