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Webster 1913 Edition

Adj.

Reverting, or tending to revert; returning.

–

Re-vert′ive-ly

adv.

The tide

revertive

, unattracted, leaves
A yellow waste of idle sands behind.

Thomson.

Adj.

Changing; reversing.

revertive ‎(comparative more revertive, superlative most revertive)

Reverting, or tending to revert; returning.
(Can we find and add a quotation of Thomson to this entry?)