Mark (Verb) - Vine's Expository Dictionary of New Testament Words
Mark (Verb)
[ 1,,G1907, epecho ]lit., to hold upon" (epi, "upon," echo, "to hold"), signifies (like parecho) "to hold out," Philippians 2:16, of the word of life; then, "to hold one's mind towards, to observe," translated "marked" in Luke 14:7, of the Lord's observance of those who chose the chief seats. See HEED, HOLD, STAY.
[ 2,,G4648, skopeo ]
"to look at, behold, watch, contemplate," (akin to skopos, "a mark," See Noun above), is used metaphorically of "looking to," and translated "mark" in Romans 16:17, of a warning against those who cause divisions, and in Philippians 3:17, of observing those who walked after the example of the Apostle and his fellow workers, so as to follow their ways. See HEED, Note
(1), LOOK.