dropback

[drop-bak] /ˈdrɒpˌbæk/
noun
1.
a lowering, as of prices or standards, especially to a previous level:
Auto manufacturers requested a dropback in emissions standards.
Origin
noun use of verb phrase drop back
Idioms and Phrases with drop back

drop back

Step back, retreat. For example, When it was time for a group picture, Mary dropped back.