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Webster 1913 Edition

Verb.

To pave.

[Poetic]

Impaved

with rude fidelity
Of art mosaic.

Wordsworth.

impave ‎(third-person singular simple present impaves, present participle impaving, simple past and past participle impaved)

(archaic, poetic) To pave.
Impaved with rude fidelity / Of art mosaic. — Wordsworth.