Kneeler
Kneeler , noun
1.
One who kneels or who worships by or while kneeling. — Tennyson
2.
A cushion or stool to kneel on, such as one attached to a pew in a church.
3.
(Ecclesiastical Hist.) A name given to certain catechumens and penitents who were permitted to join only in parts of church worship.