(from Late Latin, 1526, genuflectionem (genuflexio), from stem of genuflectere "genuflect", from Latin genu, "knee" + flectere< "to bend")

(Latin: from Old French seculer; from Late Latin sæcularis, worldly, living in the world, not belonging to a religious order; from saecularis, pertaining to a generation or age; from saeculum, saeclum, period of a man's life, generation; period of a hundred years)

(Latin: weighty, important, grave [from French sérieux (feminine sériuse), from Late Latin seriosus, from earlier Latin serius])

(Latin: Chinese, from Medieval Latin Sinicus, "Chinese", from Sina, "China", from Late Latin Sinae, "the Chinese"; Sino-, "Chinese people, language, etc.")