Demarcate

глагол 1) разграничивать, разделять; размежёвывать Синоним(ы): separate 2) проводить демаркационную линию

Большой англо-русский словарь

Demarcate

transitive verb (-cated; -cating) Etymology: back-formation from demarcation, from Spanish demarcación, from demarcar to delimit, from de- + marcar to mark, probably from Italian marcare, of Germanic origin; akin to Old High German marha boundary — more at mark 1. delimit 2. to set apart; distinguish Example: demarcate teachers as mentor, master and model teachers based on their level of education — Shanay Cadettedemarcation noun

Merriam-Webster's Collegiate Dictionary