Milton: To the Lord General Fairfax

3. To extend or enlarge by the addition or inser tion of something; to increase, to strengthen. "The Councils of Con stance and of Basil kept those feathers yet from growing with which they imped their wings afterward." - Clarendon: Religion and Policy, ch. vi. *im-pa-ca-ble, a. [Lat. im - in- =not; pac ( o )= to pacify, and Eng. suff. -able .] [PACATE.] That cannot be appeased or quieted. "Freed from bands of impacable fate." Spenser: Ruins of Time, 395. In the example, for the sake of the meter, the pronunciation is im - pa - ca -ble. im-pā-ca-bly, adv . [Eng. impacab ( le ); -ly .] In an impacable manner; in a manner that cannot be appeased. *Im-pack-ment, s. [Pref. im-=in; Eng. pack , and suff. -ment.] The state of being closely packed, pre ed together, or surrounded, as by ice.