Ethan, who was most recently with Atherton Collieries, links up with Chris Willcock’s squad ahead of the final seven games of the season.
The 22-year-old has made 32 appearances for The Colls this season and was awarded their Young Player of the Season Award for the 2021-22 season.
Ethan played against Celtic in the 1-1 draw earlier this season at the Skuna Stadium and also played at Bower Fold last year when Celtic beat his former side 1-0 through a Raul Correia debut goal.
Starting his career at Burnley, he spent 10 years at Turf Moor, progressing through the clubs academy before leaving in 2019.
He then stepped in to non-league football and joined Barnoldswick Town where he made 43 appearances, picking up nine player of the match awards.
After a stint at Longridge Town, he moved up a division to play for Mossley where he spent the 2020-21 season.
Ahead of the 2021-22 season, he stepped up into the Northern Premier League Premier Division and signed for Atherton Colls where he has spent the last two seasons, up until his departure earlier this month.