degression

Etymology 1
From, from + , past perfect participle of , from  +.

Noun

 * 1)  Descent, the act of descending.
 * 2) * 1486, Henry VII at York in Surtees Misc., 55:
 * For your blode this citie made never degression.
 * 1)  Degressive taxation, a system of progressive decreases in a rate of taxation (as tariffs etc.) below certain benchmarks.
 * 2)  Degressive description, a system of varying descriptions of a book in accordance to its importance or available space.
 * 3) * 1908, F. Madan in Transactions of the Bibliographical Society, number 9, page 53:
 * The principle of degression... It may therefore be worth while to suggest four forms for the description of a book, showing by degressive changes what details may fairly be omitted in short descriptions.
 * The principle of degression... It may therefore be worth while to suggest four forms for the description of a book, showing by degressive changes what details may fairly be omitted in short descriptions.

Etymology 2
See.