opisth-
combining form 
or opistho-
Etymology: Gr, from opisthen, opithen behind, in the rear; akin to Greek epi on, upon — more at epi- 
1. : having something (specified) located dorsally or posteriorly 
< opisthotic >
< opisthandric >
2. : dorsal or posterior 
< opisthaptor >
< opisthodome >
or opistho-
1.
< opisthotic >
< opisthandric >
2.
< opisthaptor >
< opisthodome >