Lexical Definition

‎רָקַב‎ râqab (raw-kab') to rot ^H:V
a primitive root

rot.

• to decay (as by worm-eating)

1) (Qal) to rot

Brown-Driver-Briggs

[‎רָקֵב‎] verb rot (Late Hebrew id.; Aramaic ‎רקב‎ in derivatives ); —

Qal Imperfect 3 masculine singular ‎יִרְקַב‎ Isa 40:20 (of tree); figurative ‎שֵׁם רְשָׁעִים יִרְקָ֑ב‎ Prov 10:7 (Krochm and others ‎יוּקָ֑ב‎ be cursed, √ ‎קבב‎, compare Toy).

Brown-Driver-Briggs References