[1555–65; ab- + -sonant, as in consonant, dissonant]This word is first recorded in the period 1555–65. Other words that entered Englishat around the same time include: diabetes, incompatible, module, probe, pulpab- is a formal element occurring in loanwords from Latin, where it meant “away from”.Other words that use the affix ab- include: abdicate, abolition