From Tsaw'ar; conflagration (of fire or disease) -- burning, inflammation.
see HEBREW Tsaw'ar
H6867. tsarebeth
[צָרָב] adjective burning, scorching (= * צַרָּב Thes and others); — צָרָ֑בֶת כְּאֵשׁ Proverbs 16:27 (simile of words.).
צָרֶ֫בֶת noun feminine scab, scar, of a sore (literally a burning, scorching); — construct הִוא הַשְּׁחִין צָרֶבֶת Leviticus 13:23; ׳צ הִוא הַמִּכְוָה 13:28.