apprehension (n.)

late 14c., "perception, comprehension," from Old French apreension "comprehension, something learned" or directly from Latin apprehensionem (nominative apprehensio), noun of action from past participle stem of apprehendere "take hold of, grasp" physically or mentally (see apprehend). Sense of "seizure on behalf of authority" is 1570s; that of "anticipation" (usually with dread), "fear of the future" is from c. 1600.