Who said "Calmer than oil on the water."?

Latin proverb. Source: Erasmus, Adagia (Bland ed. 1814, p. 220).

What is the original Latin?

Oleo tranquilior. Translated from the original Latin by Spartan Surfers.

Calmer than oil on the water.

Latin proverb, Erasmus, Adagia (Bland ed. 1814, p. 220)

The source

"Calmer than oil on the water." This Latin proverb is recorded in Erasmus, Adagia (Bland ed. 1814, p. 220). Translated from the original Latin by Spartan Surfers.

"Oleo tranquilior"

Original Latin, Erasmus, Adagia (Bland ed. 1814, p. 220). Latin: Erasmus' Adagia as printed in R. Bland, Proverbs Chiefly Taken from the Adagia of Erasmus (1814), archive.org.

Who said it

Proverbs of the world (Every age). Sayings from the Latin, Greek, Norse, Japanese, Chinese and more, each traced to an old source in its own language.

Questions

Who said "Calmer than oil on the water."?: Latin proverb. Source: Erasmus, Adagia (Bland ed. 1814, p. 220).
What is the original Latin?: Oleo tranquilior. Translated from the original Latin by Spartan Surfers.