King James Version (KJV)
And the LORD shall smite Egypt: he shall smite and heal {it}: and they shall return {even} to the LORD, and he shall be intreated of them, and shall heal them.
Modern English
Yahweh will strike Egypt, striking and healing. They will return to Yahweh, and he will be entreated by them, and will heal them.
Hebrew
וְנָגַ֧ף יְהוָ֛ה אֶת־מִצְרַ֖יִם נָגֹ֣ף וְרָפ֑וֹא וְשָׁ֙בוּ֙ עַד־יְהוָ֔ה וְנֶעְתַּ֥ר לָהֶ֖ם וּרְפָאָֽם׃
vnagaf yhvah ʾet-miṣrayim nagof vrapvoʾ vshabv ʿad-yhvah vneʿtar lahem vrpaʾam