fīftafæder v. [fæder].
[ fīfte] fifthly, LL 158[16].
fīfteg = [fīftig]
fīftegða = [fīftēoða]
fīftēne = [fīftīene]
[ fīfteogoða] ‘fiftieth,’ Æ; CP.
[ fīf-tēoða] (ȳ1). -tēða, -tegða ‘fifteenth,’ BH, Lcd.
[ fīftīene] (ȳ1, ē2, ȳ2) (often w. g.) ‘fifteen,’ A, B, Gu; AO.
[ fīftīenewintre] (e2) fifteen years old, Bl 2131.
[ fīftig] num. ‘fifty,’ Æ: sb. a set of fifty, Mk.