Old Poet. old; ancient; of old, or of former times
Origin of oldenME, inflected form of old
Of, relating to, or belonging to time long past; old or ancient: olden days.
Origin of oldenMiddle English : old, old; see old + -en, adj. suff.; see –en2.
From old +"Ž -en.
(third-person singular simple present oldens, present participle oldening, simple past and past participle oldened)