נָכַר ‎ nâkar
A primitive root; properly to scrutinize, that is, look intently at; hence (with recognition implied), to acknowledge, be acquainted with, care for, respect, revere, or (with suspicion implied), to disregard, ignore, be strange toward, reject, resign, dissimulate (as if ignorant or disowning): - acknowledge, X could, deliver, discern, dissemble, estrange, feign self to be another, know, take knowledge (notice), perceive, regard, (have) respect, behave (make) self strange (-ly).