King James Version (KJV)
Howbeit the hair of his head began to grow again after he was shaven. {after...: or, as when he was shaven}
Modern English
However the hair of his head began to grow again after he was shaved.
Hebrew
וַיָּ֧חֶל שְׂעַר־רֹאשׁ֛וֹ לְצַמֵּ֖חַ כַּאֲשֶׁ֥ר גֻּלָּֽח׃
vayaḥel shʿar-roʾshvo lṣameḥa kaʾasher gulaḥ