That thou ... - Render it: after that thou didst build “unto thee an eminent place,” and didst make “thee an high place in every street” - after that thou didst build “thy high place at the head of every way and” didst make ...”it came to pass, that thou” didst “also” commit “fornication” etc.
An eminent place - literally, “an arched building.” Such places were used as brothels, and so the word is used metaphorically for a place of idol-worship.