decury

[dek-yoo-ree] /ˈdɛk yʊ ri/
noun, plural decuries. Roman History
1.
a division, company, or body of ten men.
2.
any larger body of men, especially the curiae.
Origin
1525-35; < Latin decuria a company of ten. See decurion, -y3
British Dictionary definitions for decury

decury

/ˈdɛkjʊərɪ/
noun (pl) -ries
1.
(in ancient Rome) a body of ten men
Word Origin
C16: from Latin decuria; see decurion