1. To form into pearls, or into that which resembles pearls. Dewdrops which the sun Impearls on every leaf and every flower. (Milton)
2. To decorate as with pearls or with anything resembling pearls. With morning dews impearled. (Mrs. Browning) The dews of the morning impearl every thorn. (R. Digby)
Origin: Pref. Im- in – pearl: cf. F. Emperler.