infantry

 
Pronunciation: /ˈɪnf(ə)ntri/

noun

[mass noun]
  • soldiers marching or fighting on foot; foot soldiers collectively: the infantry advanced at sunrise the ships carried two regiments of infantry [as modifier]: infantry battalions

Origin:

late 16th century: from French infanterie, from Italian infanteria, from infante 'youth, infantryman', from Latin infant- (see infant)