Definitions of y-

  1. Used in Middle English as the sign of the past participle; as, yclept.
  2. Y, the twenty- fifth letter of the English alphabet, at the beginning of a word or syllable, except when a prefix ( see Y-), is usually a fricative vocal consonant; as a prefix, and usually in the middle or at the end of a syllable, it is a vowel.
  3. Something shaped like the letter Y; a forked piece resembling in form the letter Y.
  4. One of the forked holders for supporting the telescope of a leveling instrument, or the axis of a theodolite; a wye.
  5. A forked or bifurcated pipe fitting.
  6. A prefix of obscure meaning, originally used with verbs, adverbs, adjectives, nouns, and pronouns.
  7. A common prefix in Old English words, as in y- clept, y- clad, etc., representing A. S. ge-, which assumed this form by the common weakening of g to y. The meaning of words with this prefix is usually the same as if it were absent.
  8. Twenty- fifth letter of the alphabet.
  9. The twenty- fifth letter in the English alphabet.
  10. The twenty- fifth letter of the English alphabet, taken from the Greek v. At the beginning of words, it is called an articulation or consonant. In the middle and at the end of words, y is precisely the same as i. It is sounded as i long, when accented, as in defy, rely; and as i short, when unaccented, as in vanity. At the beginning of words, y answers to the German and Dutch j.
  11. Y was used as a prefix by many old writers, without, however, increasing or modifying the meaning of the word; it has the sound of e, as in y- clad, clad; y- clept, called; y- drad, dreaded; y in such words representing the AS. ge, the general prefix with participles.
  12. One of the forked pieces which support the pivots of the telescope of a theodolite, and the like- so called from their form.