10
Immodest
pre
small
Cesar
In Greek Dec means ten
decahedron means flat ided figure which means a figure ten sides
The prefix for comfort is "com-".
Over is a prefix
Dec- means 10 like Tri- means 3 tricycle bi means 2 bicycle 2 wheels... if Dec means 10 then a decagon has 10 sides!
Some words that use 'dec' to mean by or with ten are:decadedecagramdecahedrondecaloguedecameterdecapoddecasyllabicdecathalondecigramdeciliterdecimaldecimeter
there no perfix in math
Dec or deca (as in a decade)