sergeant
Pronunciation: /ˈsɑːdʒ(ə)nt/
noun

Origin:
Middle English: from Old French sergent, from Latin servient- 'serving', from the verb servire. Early use was as a general term meaning 'attendant, servant' and 'common soldier'; the term was later applied to specific official roles

Spelling help
The beginning of sergeant is spelled ser-; the ending is -geant.