“to issue a fine.” The Hebrew word is `anash (#06064 עָנַשׁ), and it is in the Qal aspect of the verb, so it means to issue or impose a fine (cp. NRSV). Here it is used as a synecdoche of the part for “punishment” in general.
“to beat.” The Law of Moses allowed guilty men to be flogged. Jeremiah was an example of a righteous man who was flogged by ungodly rulers (Jer. 20:2).