sequence Look up sequence at Dictionary.com
1387, "hymn sung after the Hallelujah and before the Gospel," from O.Fr. sequence "answering verses" (13c.), from M.L. sequentia "a following, a succession," from L. sequentem (nom. sequens), prp. of sequi "to follow" (see sequel). In Church use, a partial loan-translation of Gk. akolouthia, from akolouthos "following." General sense of "succession," also "a sequence at cards," appeared 1575.