From Tolkien Gateway

As the name Inwë (Lost Tales) is incorporated in the article Ingwë, shouldn't Ingil be incorporated to the article Ingwion, as that was the last stage of the name (HoME XI, 246). In The Quenta and later the name was Ingwiel. --Tik 09:37, 5 February 2014 (UTC)

I agree.--Morgan 10:13, 5 February 2014 (UTC)