Seldem \Sel"dem\, adv. [Usually, Compar. {More seldom}; superl. {Most seldom}; but sometimes also, {Seldomer}, {Seldomest}.] [AS. seldan, seldon, seldum, fr. seld rare; akin to OFries. sielden, D. zelden, G. selten, OHG. seltan, Icel. sjaldan, Dan. sielden, Sw. s["a]llan, Goth. sildaleiks marvelous.] Rarely; not often; not frequently. Wisdom and youth are seldom joined in one. --Hooker.