See the entire entry for nyḥwḥ n.m. pleasantness

Ezra6:10 :וּמְצַלַּיִן לְחַיֵּי מַלְכָּא וּבְנוֹהִי : praying for the life of the king and his sons

See the entire entry for ṣly vb. to bend down; D to pray