noun

• (obsolete) The sign or exhibition of joy; gaiety; merriment; festivity.
  "Such ioy made Vna, when her knight she found;"

intj

• (dated, often sarcastic) Expressing appreciation and happiness.
  "'Joy! joy!' he cried, throwing his arms towards Heaven, 'on a grave be the site of our Temple; and now our happiness is for Eternity!'"

verb

• (intransitive) To feel joy, to rejoice.
  "for oftymes or this oure lord shewed hym vnto good men and vnto good knyghtes in lykenes of an herte But I suppose from hens forth ye shalle see no more / and thenne they Ioyed moche / and dwelled ther alle that day / And vpon the morowe whan they had herde masse / they departed and commaunded the good man to god"
• (transitive, archaic) To enjoy.
  "I haue my wish, in that I ioy thy sight,"
• (transitive, obsolete) To give joy to; to congratulate.
  "Then round our Death-bed ev'ry Friend ſhou'd run, / And joy us of our Conqueſt, early won: […]"
• (transitive, obsolete) To gladden; to make joyful; to exhilarate.
  "Yet neither pleasure’s art can joy my spirits, Nor yet the other’s distance comfort me."