הַיּ֥וֹם הַה֗וּא יְֽהִ֫י חֹ֥שֶׁךְ אַֽל־יִדְרְשֵׁ֣הוּ אֱל֣וֹהַּ מִמָּ֑עַל וְאַל־תּוֹפַ֖ע עָלָ֣יו נְהָרָֽה׃
Rashi on Job
May that day be dark constantly; every year, when that day arrives.
Rashi on Job
and let no light shine upon it Heb. נהרה,light, like צהר, which is translated נהור.