και 2532 CONJ ηδη 2235 ADV οψιας 3798 A-GSF γενομενης 1096 5637 V-2ADP-GSF επει 1893 CONJ ην 2258 5713 V-IXI-3S παρασκευη 3904 N-NSF ο 3739 R-NSN εστιν 2076 5748 V-PXI-3S προσαββατον 4315 N-NSN
Vincent's NT Word Studies
42. Even. See on Matt. xxvii. 57.The day before the Sabbath (prosabbaton). The fore Sabbath. Peculiar to Mark, and only here.
Robertson's NT Word Studies
15:42 {The preparation} (paraskeue). Mark explains the term as meaning "the day before the sabbath" (prosabbaton), that is our Friday, which began at sunset. See discussion on Mt 27:57. The Jews had already taken steps to get the bodies removed (#Joh 19:31).