fauxbourdon
noun
faux·bour·don
ˈfōbə(r)ˌdän
plural -s
1
: harmonic progressions of the 15th century characterized by parallel fourths in the two upper voices and based chiefly on parallel sixth chords
2
: a sacred homophonic choral composition
Word History
Etymology
French faux-bourdon, from Middle French, from faux false (from Latin falsus) + bourdon bass horn