Erstwhile and Once only

Erstwhile

Erstwhile adverb - At an earlier or previous time.

Once only and erstwhile are semantically related In some cases you can use "Once only" instead an adverb "Erstwhile".

Once only

Definitions of Erstwhile not found.

Erstwhile and once only are semantically related in in the past topic. Sometimes you can use "Erstwhile" instead an adverb phrase "Once only".
Cite this Source
Once only and Erstwhile. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/erstwhile/once_only
Erstwhile & Once only. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/erstwhile/once_only>.
Once only or Erstwhile. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/erstwhile/once_only.
Google Ngram Viewer shows how "erstwhile" and "once only" have occurred on timeline