terruncula Save DMLBS Du Cange terruncula [CL terra+-uncula], small plot of land. 859 aliquam †terre unculam emi CS 497; ? 869 (10c) est autem terruncula praememorata his falerata agellulis CS 524. TERRUNCULA, Modica Terræ portio, in Onomastico ad calcem tom. 9. Ampl. Collect. Marten.