[wane] vi waned ; wan.ing [ME, fr. OE wanian; akin to OHG wanon to wane, OE wan wanting, deficient, L vanus empty, vain] (bef. 12c) 1: to decrease in size, extent, or degree: dwindle: as a: to diminish in phase or intensity--used chiefly of the moon b: to become less brilliant or powerful: dim c: to flow out: ebb
2: to fall gradually from power, prosperity, or influence syn see abate
[2]wane n (14c) 1 a: the act or process of waning "strength on the ~" b: a period or time of waning; specif: the period from full phase of the moon to the new moon
2. [ME, defect, fr. OE wana; akin to OE wan deficient]: a defect in lumber characterized by bark or a lack of wood at a corner or edge