[yawn] vb [ME yenen, yanen, fr. OE ginian; akin to OHG ginen to yawn, L hiare, Gk chainein] vi (bef. 12c) 1: to open wide: gape
2: to open the mouth wide usu. as an involuntary reaction to fatigue or boredom ~ vt 1: to utter with a yawn
2: to accomplish with or impel by yawns "his grandchildren ~ed him to bed --L. L. King"
[2]yawn n (1602) 1: gap, cavity
2: a deep usu. involuntary intake of breath through the wide open mouth often as an involuntary reaction to fatigue or boredom; also: a reaction resembling a yawn "a ... success at the box office but drew only ~s from critics --Current Biog."
3: [5]bore