I. ˈfa(a)riŋ, ˈfer- noun
( -s )
Etymology: fair (V) + -ing
Britain : a present, cake or sweet, or souvenir purchased at a fair
a fairing to be bought for those at home — Flora Thompson
II. noun
( -s )
Etymology: from gerund of fair (III)
: a member or structure the primary function of which is to produce a smooth outline and to reduce drag or head resistance (as on an airplane)