[1615–25; ‹ L dubitābilis, equiv. to dubitā(re) to doubt + -bilis-ble]This word is first recorded in the period 1615–25. Other words that entered Englishat around the same time include: deposit, evolution, palette, scintillation, swamp-ble is a suffix meaning “capable of, susceptible of, fit for, tending to, given to”.Other words that use the affix -ble include: miserable, noble, predicable, probable, vegetable