The Collaborative International Dictionary of English v.0.48:

Able \A"ble\, v. t. [See Able, a.] [Obs.]
   1. To make able; to enable; to strengthen. --Chaucer.
      [1913 Webster]

   2. To vouch for. "I 'll able them." --Shak.
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The Collaborative International Dictionary of English v.0.48:

-able \-a*ble\ (-[.a]*b'l). [F. -able, L. -abilis.]
   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.
   [1913 Webster]

   Note: The form -ible is used in the same sense.
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   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.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Able \A"ble\, a. [comp. Abler; superl. Ablest.] [OF. habile,
   L. habilis that may be easily held or managed, apt, skillful,
   fr. habere to have, hold. Cf. Habile and see Habit.]
   1. Fit; adapted; suitable. [Obs.]
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            A many man, to ben an abbot able.     --Chaucer.
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   2. Having sufficient power, strength, force, skill, means, or
      resources of any kind to accomplish the object; possessed
      of qualifications rendering competent for some end;
      competent; qualified; capable; as, an able workman,
      soldier, seaman, a man able to work; a mind able to
      reason; a person able to be generous; able to endure pain;
      able to play on a piano.
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   3. Specially: Having intellectual qualifications, or strong
      mental powers; showing ability or skill; talented; clever;
      powerful; as, the ablest man in the senate; an able
      speech.
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            No man wrote abler state papers.      --Macaulay.
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   4. (Law) Legally qualified; possessed of legal competence;
      as, able to inherit or devise property.
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   Note:

   Able for, is Scotticism.

            "Hardly able for such a march." --Robertson.
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   Syn: Competent; qualified; fitted; efficient; effective;
        capable; skillful; clever; vigorous; powerful.
        [1913 Webster]

WordNet (r) 3.0 (2006):

able
    adj 1: (usually followed by `to') having the necessary means or
           skill or know-how or authority to do something; "able to
           swim"; "she was able to program her computer"; "we were
           at last able to buy a car"; "able to get a grant for the
           project" [ant: unable]
    2: have the skills and qualifications to do things well; "able
       teachers"; "a capable administrator"; "children as young as
       14 can be extremely capable and dependable" [syn: able,
       capable]
    3: having inherent physical or mental ability or capacity; "able
       to learn"; "human beings are able to walk on two feet";
       "Superman is able to leap tall buildings"
    4: having a strong healthy body; "an able seaman"; "every able-
       bodied young man served in the army" [syn: able, able-
       bodied]

Moby Thesaurus II by Grady Ward, 1.0:

77 Moby Thesaurus words for "able":
   adapted, adequate, adjusted, alert, au fait, brainy, brilliant,
   capable, checked out, clever, competent, effective, effectual,
   efficacious, efficient, enigmatic, enterprising, equal to, expert,
   fit, fitted, fitted for, go-ahead, good, incalculable,
   incognizable, intelligent, journeyman, keen, mysterious,
   productive, proficient, proper, puzzling, qualified, sealed, sharp,
   skilled, skillful, smart, strange, suited, unapparent,
   unapprehended, unascertained, unbeknown, uncharted, unclassified,
   undisclosed, undiscoverable, undiscovered, undivulged, unexplained,
   unexplored, unexposed, unfamiliar, unfathomed, unheard, unheard-of,
   unidentified, uninvestigated, unknowable, unknown, unperceived,
   unplumbed, unrevealed, unsuspected, untouched, up to, up to snuff,
   up-and-coming, virgin, well-fitted, well-qualified, well-suited,
   wicked, worthy



The Free On-line Dictionary of Computing (30 December 2018):

ABLE

    A simple language for accountants.

   ["ABLE, The Accounting Language, Programming and Reference
   Manual," Evansville Data Proc Center, Evansville, IN, Mar
   1975].

   [Listed in SIGPLAN Notices 13(11):56 (Nov 1978)].

   (1994-11-08)