STEP Hebrew Lexicon: חָשַׁךְ

1) to be or become dark, grow dim, be darkened, be black, be hidden

1a) (Qal)

1a1) to be or grow dark

1a2) to have a dark colour

1a3) to grow dim

1b) (Hiphil)

1b1) to make dark, cause to be dark

1b2) to hide, conceal

1b3) to obscure, confuse (fig.)