Sido, ōnis, m.,
a chief of the Suevi about the middle of the first century , Tac. H. 3, 5; 3, 21; id. A. 12, 29 sq.
sīdō (-sīdī, only in compounds), —, ere SED-, to sit down, sink, settle, alight : (columbae) super...
An Elementary Latin Dictionary