I. ˈōldən adjective
Etymology: Middle English, from old (II) + -en (adjective suffix)
1. : of or relating to a bygone era : ancient , quaint
Denmark in very olden times was a wooded country — Erik Schacke
in the olden days, water wheels were used to drive some of the machinery — L.D.Stamp
a style which resembles that of the olden chronicles — P.J.Searles
2. : advanced in years : old
assented to the judgment of an olden rabbinic teacher — Leonard Bernstein
II. verb
( -ed/-ing/-s )
Etymology: old (I) + -en (v. suffix)
intransitive verb
: to grow old : age
saw an oldening flaccid face — Maurice Walsh
transitive verb
archaic : to make older
experience … had oldened him — W.M.Thackeray