vbl. sb. Obs. [f. prec. + -ING1.] The action of perceiving or noticing.

1

c. 1386.  Chaucer, Sqrs. T., 278. Ffor drede of Ialouse mennes aperceyuynges.

2

c. 1400.  Rom. Rose, 6320. So sligh is the aperceyvyng That al to late cometh knowyng.

3