Makr: Makr signifies a secret strategy of which the victim has no inkling until the decisive blow is struck. Until then, the victim is under the illusion that everything is in good order. See Holy Qur'an, Aali-Imran (3:54).
MAKR
Meaning of MAKR in English
Advanced Islamic English dictionary. Расширенный исламский словарь английского языка. 2012