se·cern 
(sĭ-sûrn)
(sĭ-sûrn)tr.v. se·cerned, se·cern·ing, se·cerns
To discern as separate; discriminate.
[Latin sēcernere, to sever : sē-, apart; see s(w)e- in the Appendix of Indo-European roots + cernere, to separate; see krei- in the Appendix of Indo-European roots.]
se·cernment n.