That is acknowledged as authoritative; thoroughly established; highly esteemed.

Strengthened, confirmed, corroborated. as past participle. archaic.

based on plain or obvious facts.

Supported by reason, evidence, or right; warranted.

Furnished with evidence or proof.

Of which there is evidence or of which other instances can be found; that is supported or illustrated by an example or examples; = exemplified, adj.…

Sworn, vouched for, certified, proved.

Of which there is evidence or of which other instances can be found; that is supported or illustrated by an example or examples. Cf. exampled, adj. 1.