Laconic - using few words, concise. Ex: A laconic reply. Origin: Derived from Laconia, Greece. The people of this region, which held Sparta as its capital, were said to be brief and concise in speech and writing.
Semantic satiation (also semantic saturation) is a psychological phenomenon in which repetition causes a word or phrase to temporarily lose meaning for the listener, who then perceives the speech as repeated meaningless sounds.