Meaning of -ABLE in English
a suffix meaning "capable of, susceptible of, fit for, tending to, given to," associated in meaning with the word able , occurring in loanwords from Latin ( laudable ); used in English as a highly productive suffix to form adjectives by addition to stems of any origin ( teachable; photographable ).
Also, -ble, -ible .
[ ME -abilis, equiv. to -a- final vowel of 1st conjugation v. stems + -bilis ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012