de·cem·vir (dĭ-sěm'vər) n.
pl.de·cem·virs or de·cem·vi·ri (-və-rī')
One of a body of ten Roman magistrates, especially a member of one of two such bodies appointed in 451 and 450 B.C. to draw up a code of laws.
One of an authoritative body of ten.
[Middle English, from Latin, sing. of decemvirī, commission of ten men : decem, ten; see dek in Indo-European roots + virī, pl. of vir, man; see wī-ro- in Indo-European roots.] de·cem'vi·ral adj., de·cem'vi·rate (-vər-ĭt, -və-rāt') n.