Noah Webster's Dictionary 1. (p. pr. & vb. n.) of Still. 2. (n.) A stillion.

Multi-Version Concordance Stilling (1 Occurrence) Jeremiah 51:55 For Yahweh lays Babylon waste, and destroys out of her the great voice; and their waves roar like many waters; the noise of their voice is uttered: (See RSV)