In the olden days
Old and in the olden days are semantically related. in in the past topic. In some cases you can use "Old" instead an adverb phrase "In the olden days".
Old
Old adjective - Being of advanced years and especially past middle age.
In the olden days and old are semantically related. Sometimes you can use "In the olden days" instead an adverb "Old".
Both terms in one sentence
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Back in the olden days, they were bona-fide heroes, fighting the old-tyme Sorcerous Overlords of the world as the Order of Reason, in the name of God, the common good, and the Muggles of the world.
Source: Fallen Hero - Ore World 1 and 2 were extremely old examples of Mario hacks with lots of ASM in the form of custom bosses and sprites, and were actually kind of impressive back in the olden days.
Cite this Source
Old and In the olden days. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/in_the_olden_days/old
In the olden days & Old. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/in_the_olden_days/old>.
Old or In the olden days. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/in_the_olden_days/old.