valence
Meaning
The combining capacity of an atom or radical, determined by the number of electrons it can lose, add, or share.
(in psychology) The degree of attractiveness or aversion an individual feels toward a specific object or event.
(chiefly literary) The relative strength of emotion or a feeling.
Structure
Usage
Oxygen has a valence of two in most of its compounds.
The advertisement was designed to give the product a positive emotional valence.
He spoke with a peculiar valence of regret and relief.
Etymology
The word 'valence' originates from the Latin verb valere, meaning "to be strong" or "to be of worth." This core concept of strength and capacity was adopted into early scientific Latin as valentia to denote "power" or "capacity." In the 19th century, chemists borrowed the term to describe the "combining power" of an element, metaphorically extending the idea of strength to an atom's ability to bond. This scientific usage later inspired analogous applications in psychology and general language, where it describes the strength or potency of emotional attraction or feeling.
Analysis
'val' is from Latin valere (to be strong, be worth). 'ence' is a noun-forming suffix from Latin -entia, indicating a state or quality.