affinity
natural liking, closeness, or connection
Roots
Other words with the fin root
Affinity began with bordering: two things close enough to share an edge. Modern affinity is closeness in feeling, fit, or kind.
The student felt an affinity for examples that made the root visible before the definition.
Affinity is not just liking. It feels like nearness: two people, ideas, or habits share a border, so they begin to belong near each other.