shaden

Etymology

From shade + -en.

shaden means to make or become shaded or shady. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

verb

To make or become shaded or shady.“But I'd obviously put the plant in the wrong place. It shadened and dampened some delicate things in the scree; of total losses, it accounted for a just-established plant of the large-flowered Dianthus alpinus and one Erinus.”