soundness
UK[ˈsaʊndnəs]US[ˈsaʊndnəs]
n
The quality or state of being based on valid reason, logic, or good judgment; reliability.
n
The quality or state of being in good condition; solidity or firmness.
Morpheme Breakdown
sound
ness
sound
healthy, valid
ness
noun suffix
Etymology
The word 'soundness' is a direct inheritance from Old English, built upon the adjective 'sound', which originally meant "healthy, uninjured, safe." This Old English term 'gesund' is traced back to the Proto-Germanic 'sundaz', itself derived from the Proto-Indo-European root 'swen-', meaning "to sound, resound," suggesting a conceptual link between being whole and being in good, resonant condition. Over centuries, the semantic field of 'sound' expanded metaphorically from physical health and safety to encompass logical validity and financial stability. The suffix '-ness', a prolific noun-forming element in Germanic languages, was attached to create the abstract noun 'soundness', formally encapsulating the state or quality of being sound in any of its modern senses, from robust health to flawless reasoning.
Analysis
Structure: sound (healthy, valid) + ness (noun suffix)
- sound: From Old English 'gesund' meaning "healthy, safe, whole," of Germanic origin. Functions as the core adjective root conveying the qualities of health, validity, and reliability.
- ness: From Old English '-nes(s)', a noun-forming suffix indicating a state, quality, or condition. Functions as a derivational suffix that converts the adjective 'sound' into an abstract noun.
Examples
The soundness of the bridge's construction was verified by engineers.
His argument was praised for its logical soundness and clarity.
Investors were concerned about the long-term financial soundness of the company.