different between dauntlessness vs mettle

English

dauntless +? -ness

dauntlessness (uncountable)

1580s, originally a variant of metal, which had a figurative sense until the early 18th century.

mettle (usually uncountable, plural mettles)

A quality of endurance and courage.
Synonyms: courage, heart, spirit
- 2001, Harry J. Alexandrowicz, Testing your Mettle: Tough Problems and Real-world Solutions for Middle and High School Teachers, page xiii
  Please read on and discover the issues in education that test the mettle of those who experience this world every day.
Good temperament and character.
(obsolete) Metal; a metallic substance.

Send