To perceive or understand as fact or truth; to apprehend clearly and with certainty.
To have established or fixed in the mind or memory (Dictionary.com).
Etymology (EN): M.E. knowen, knawen, from O.E. cnâwan, akin to O.H.G. bichnâan
“to recognize,” L. gnoscere, noscere “to come to know,” Gk.
gignoskein, Pers. šenâxtan, dânestan, as below.
Etymology (PE): Dânestan “to know;” Mid.Pers.
dânistan “to know;” variant šenâxtan, šenâs-
“to recognize, to know” (Mid.Pers. šnâxtan, šnâs- “to know, recognize”);
O.Pers./Av. xšnā- “to know, learn, come to know, recognize;” cf.
Skt. jñā- “to recognize, know,” jānāti “he knows;” Gk.
gignoskein “to know, think, judge,”
cognate with L. gnoscere, noscere “to come to know” (Fr. connaître;
Sp. conocer); P.Gmc. *knoeanan;
O.E. cnawan, E. know, as above; Rus. znat “to know;”
PIE base *gno- “to know.”
