IBLE
*a*ble. Etym: [F. -able, L. -abilis.]
Definition: An adjective suffix now usually in a passive sense; able to be;
fit to be; expressing capacity or worthiness in a passive sense; as,
movable, able to be moved; amendable, able to be amended; blamable,
fit to be blamed; salable.
Note: The form ible is used in the same sense.
Note: It is difficult to say when we are not to use -able instead of
-ible. "Yet a rule may be laid down as to when we are to use it. To
all verbs, then, from the Anglo-Saxon, to all based on the
uncorrupted infinitival stems of Latin verbs of the first
conjugation, and to all substantives, whencesoever sprung, we annex -
able only." Fitzed. Hall.
*a*ble. Etym: [F. -able, L. -abilis.]
Definition: An adjective suffix now usually in a passive sense; able to be;
fit to be; expressing capacity or worthiness in a passive sense; as,
movable, able to be moved; amendable, able to be amended; blamable,
fit to be blamed; salable.
Note: The form ible is used in the same sense.
Note: It is difficult to say when we are not to use -able instead of
-ible. "Yet a rule may be laid down as to when we are to use it. To
all verbs, then, from the Anglo-Saxon, to all based on the
uncorrupted infinitival stems of Latin verbs of the first
conjugation, and to all substantives, whencesoever sprung, we annex -
able only." Fitzed. Hall.
-i*ble
Definition: . See -able.
Source: Webster’s Unabridged Dictionary 1913 Edition