Meaning in the sources
Reported meaningMeaning: “steadfast, stable”
No etymology text in the cited sources.
Sources for this account (3)
- Wikidata Q2635602CC0-1.0 · retrieved 2026-10-15
- Wiktionary: EustaceCC-BY-SA-4.0 · retrieved 2026-10-15
- Wikipedia (pl): EustacjuszCC-BY-SA-4.0 · retrieved 2026-10-16

