HEPPEN
Hep"pen, a. Etym: [Cf. AS. gehæp fit, Icel. heppinn lucky, E. happy.]
Defn: Neat; fit; comfortable. [Obs.]
HEPPER
Hep"per, n. Etym: [Etymol. uncertain.] (Zoöl.)
Defn: A young salmon; a parr.
HEPTA
Hep"ta. Etym: [See Seven.]
Defn: A combining form from Gr. "epta`, seven.
HEPTACHORD Hep"ta*chord, n. Etym: [Gr. "epta`xordos seven-stringed; "epta` seven + xordh` chord: cf. F. heptacorde. See Seven, and Chord.]
1. (Anc. Mus.) (a) A system of seven sounds. (b) A lyre with seven chords.
2. (Anc. Poet.)
Defn: A composition sung to the sound of seven chords or tones. Moore
(Encyc. of Music).