Verb

(en-verb)

To render larger, more extended, or more intense, and the like;—used especially of loudspeakers, telescopes, microscopes, etc.

(rhetorical) To enlarge by addition or discussion; to treat copiously by adding particulars, illustrations, etc.; to expand; to make much of.

* Dryden

Troilus and Cressida was written by a Lombard author, but much amplified by our English translator.

To increase the amplitude of something, especially of an electric current.

Verb

(refin)

To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify

* {{quote-magazine, date=2013-08-03, volume=408, issue=8847, magazine=(The Economist)

, title= Yesterday’s fuel , passage=The dawn of the oil age was fairly recent. Although the stuff was used to waterproof boats in the Middle East 6,000 years ago, extracting it in earnest began only in 1859 after an oil strike in Pennsylvania.

To purify from what is gross, coarse, vulgar, inelegant, low, and the like; to make elegant or excellent; to polish.

To become pure; to be cleared of feculent matter.

To improve in accuracy, delicacy, or excellence.

To affect nicety or subtlety in thought or language.