genuflect

Genuflect is derived from Late Latin genuflectere, formed from the noun "genu" ("knee") and the verb "flectere" ("to bend"). "Flectere" is an ancestor of a number of common verbs in English, such as "reflect" ("to throw back light or sound") and "deflect" ("to turn aside"). By comparison "genu" sees little use in English, but it did give us "geniculate," a word often used in scientific contexts to mean "bent abruptly at an angle like a bent knee." Despite the resemblance, words such as "genius" and "genuine" are not related to "genuflect"; instead, they are of a family that includes the Latin verb gignere, meaning "to beget."