Source : Webster's Revised Unabridged Dictionary (1913)

Impearl \Im*pearl"\, v. t. [imp. & p. p. {Impearled}; p. pr. &
   vb. n. {Impearling}.] [Pref. im- in + pearl: cf. F.
   emperler.]
   1. To form into pearls, or into that which resembles pearls.
      [Poetic]

            Dewdrops which the sun Impearls on every leaf and
            every flower.                         --Milton.

   2. To decorate as with pearls or with anything resembling
      pearls. [Poetic]

            With morning dews impearled.          --Mrs.
                                                  Browning.

            The dews of the morning impearl every thorn. --R.
                                                  Digby.