gadzooks!! it's an inflection of an OLD word -- would that this one had withered on the vine. (see 1955 citation)

happify - to make happy (Now U.S.)

1612 Sylvester. This Prince...One short Mis-hap for ever Happifies. 1656 S. H. Gold. It will surely conduce to prolong your days, besides happyfying them. 1786 I. Perkins Poems in H. R. Stiles Bundling To happyfy his life. 1837–40 Haliburton Clockm. (1862) 79 If that don't happify your heart, then my name's not Sam Slick. 1875 M. B. Eddy Science & Health vi. 315 To happify existence by constant intercourse with those adapted to elevate it is the true motive for marriage. 1892 Spectator 9 Apr. 497/1 Finding infants whom she could wash and dress and happify among the alleys and courts of the East-End. 1905 Daily Chron. 13 July 4/4 Her jargon about ‘happifying existence’ jars upon one after the Scriptural phrase, ‘making glad the hearts of men’. 1945 L. Shelly Jive Talk Dict. 12/2 Happify, to make happy. 1955 Watchtower 15 Mar. 182/2 Keeping these happifying thoughts in mind, we are determined to maintain our integrity faithfully. [OED]

I am mortified.