batallón
/bataˈʝon/ · B2 · noun · m
battalion
💂♂️ batallón = battle + on: a big group marching into battle
Spanish batallón comes from Italian battaglione, from battaglia, meaning battle. Hear 'batall' as 'battle' and the ending -ón as an augmentative, so it means a big battle unit: a battalion.