Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ab-brĕvĭo, āre, v. freq. a. [ab or adbrevio], to shorten, abridge, Veg. Mil. 3 prol.; Vulg. Isa. 10, 22; ib. Rom. 9, 28.