Origin: 1615–25; < L dissertāre to set forth at length (freq. of disserere to arrange in order), equiv. to dis-dis-1+ ser- put together + freq. -t- + -āre inf. suffix
dis·ser·tate (dĭs'ər-tāt') intr.v.
dis·ser·tat·ed also dis·sert·ed, dis·ser·tat·ing also dis·sert·ing, dis·ser·tates also dis·serts To discourse formally.
[Latin dissertāre, dissertāt-, frequentative of disserere, to discuss : dis-, dis- + serere, to connect; see ser-2 in Indo-European roots.] dis'ser·ta'tor n.