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Webster 1913 Edition

Adj.

[L.

invulneratus

unwounded.]

Invulnerable.

invulnerate ‎(comparative more invulnerate, superlative most invulnerate)

(obsolete) invulnerable
- Samuel Butler, Satire upon marriage
  For horns (like horny callouses) are found / to grow on sculls that have receiv'd a wound, / are crackt, and broken; not at all on those / that are invulnerate and free from blows.

invulnerate