Webster's 1828 Dictionary
GENUFLECTION
n.[L. genu, the knee, and flectio, a bending. ] The act of bending the knee, particularly in worship.
Webster's 1913 Dictionary
GENUFLECTION
Gen `u *flec "tion, n. Etym: [F. génuflexion, fr. LL. genuflexio, fr. L.genu knee + flexio a bending, fr. flectere, flexum, to bend. See Knee, Flexible. ]
Defn: The act of bending the knee, particularly in worship. Bp. Stillingfleet.
The Wordsmith Dictionary