u/Desperate-Item-6629

Hello, I have been trying to get this right.
"Ordo" as I understand it can mean both "order" as in a room or a list can be in order, but the word can also mean order as in a Chivalric Order, "Ordo Equestris Sancti Sepulcri Hierosolymitani".
Is Eques ab Ordo (Knight of Order) correct and double-meaning latin, or would "Ord-" have a different form when used in conjunction with Eques? Thank you in advance!