septemfid /sepˈtəm-fid/ adjective

(root of L findere to cleave) seven-cleft

septemvir /sep-temˈvir/ noun (pl septemˈvirī or septemˈvirs)

(L vir man) one of a board of seven

septemˈvirate noun

1. The office of a septemvir
2. A board of septemviri
3. A group of seven men

septilateral /sep-ti-latˈə-rəl/ adjective

(L latus, lateris a side) seven-sided