What is "scavage"

Scavage \Scav"age\ (?; 48), n. [LL. scavagium, fr. AS. sce['a]wian to look at, to inspect. See Show.] (O. Eng. Law) A toll or duty formerly exacted of merchant strangers by mayors, sheriffs, etc., for goods shown or offered for sale within their precincts.
--Cowell.

Etymology 1 n. (context historical English) A toll or duty anciently exacted from merchant strangers by mayors, sheriffs, etc. for goods offered for sale within their precincts. Etymology 2

vb. To act as a scavenger, to scavenge.