What does "settledness" mean?

The quality or state of being settled.

Settledness

Common synonyms include: commonness, concentration, constancy, inflexibility, inveteracy, loyalty.

noun

noun ·Rare ·Advanced level

Noun

1
The quality or state of being settled. uncountable
"Excessive joy hath more severity then jolity: extreme and full content more settlednes then cheerfulnesse."
2
The quality or state of being fixed, permanent or stationary; established. wordnet

"Excessive joy hath more severity then jolity: extreme and full content more settlednes then cheerfulnesse."

From settled + -ness.