bedim

be·dim  (b-dm)

tr.v. be·dimmed, be·dim·ming, be·dims

To make dim.

Thesaurus

Verb	1.	bedim - make darker and difficult to perceive by sight benight darken - make dark or darker; "darken a room"
	2.	bedim - make obscure or unclear; "The distinction was obscured" overcloud, obscure alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"