Sandek

Sandak (Godparent)^[1] is the one who holds the male infant on his knee during the Brit milah, while another person, the mohel, circumcises him.^[2]

1. ↑ https://www.jewishencyclopedia.com/articles/13174-sandek-syndikus
2. ↑ http://www.ebris.com/bris_stuff_sandek.html