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Fay vs Undefined - What's the difference?

fay | undefined |

As a proper noun fay

is , originally a nickname from "faith, loyalty" or "a fairy".

As an adjective undefined is

lacking a definition or value.

fay

English

Etymology 1

From (etyl) feyen, feien, from (etyl) . More at (l).

Verb

(en verb)
  • To fit.
  • To join or unite closely or tightly.
  • * US Patent Application 20070033853, 2006:
    • Under the four outer corners of the horizontal frame platform 22 are four tubular leg sleeves 23 that are fay together one at each outer corner.
  • * Model Shipbuilders , 2010:
    • I have a strip cutter and I can cut the exact widths I need to fit, they are easy to fay together and attach very firmly to the bulkheads.
  • To lie close together.
  • To fadge.
    • Derived terms
    * faying surface

    Etymology 2

    From (etyl) fegien, . More at (l), (l), (l).

    Verb

    (en verb)
  • (dialectal) To cleanse; clean out.

    • Etymology 3

    (etyl) faie, . More at fairy.

    Noun

    (en noun)
  • A fairy; an elf.
  • * 1590 , Edmund Spenser, The Faerie Queene , II.ii:
    • that mighty Princesse did complaine / Of grieuous mischiefes, which a wicked Fay / Had wrought [...].
    See also
    * fey * fae

    Etymology 4

    Abbreviation of (ofay).

    Noun

    (en noun)
  • A white person.

    • Adjective

    (en adjective)
  • White.
  • * 1946 , Mezz Mezzrow and Bernard Wolfe, Really the Blues , Payback Press 1999, p. 62:
    • I really went for Ray's press roll on the drums; he was the first fay boy I ever heard who mastered this vital foundation of jazz music.

    Anagrams

    *

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined