Cohesion (koh-HEE-zhun)
Category:
Culture & Society
Origin
From French cohésion, derived from Latin cohaerere, meaning “to stick together” or “cling together.” The English word developed through scientific and philosophical usage to describe the state of parts holding together as a unified whole.
Language Root
Latin — cohaerere, “to stick together, cling together,” from co- (“together”) + haerere (“to stick, cling”).
Original Meaning
The condition or action of sticking together. Early uses emphasized the physical attraction or connection that keeps parts of a substance joined.
Evolution Over Time
Cohesion developed from the literal idea of things physically sticking together into a broader concept of unity. In physics and chemistry, it describes attraction between molecules of the same substance. The word later expanded into social, organizational, linguistic, and psychological contexts, where it describes separate elements functioning together as a connected whole.
Modern Usage
The state of being united, connected, or working effectively together. Cohesion can describe molecules, teams, communities, arguments, writing, organizations, or any collection of parts whose connections create unity.
Word Family
Cohesion, Cohesive, Cohesively, Cohesiveness, Coherent, Coherence, Coherently, Adhere, Adhesion
Related Concept
Social Cohesion, Group Cohesion, Teamwork, Community, Cooperation, Belonging, Unity, Molecular Attraction, Surface Tension, Intermolecular Forces
Narrative
Cohesion begins with a remarkably physical idea: sticking together. Its Latin ancestor cohaerere described things clinging or adhering to one another. Science preserved that literal sense in the forces that help molecules of the same substance remain together. But the idea proved useful far beyond matter. A team has cohesion when its members operate as a unit. A community has cohesion when relationships hold people together. A piece of writing has cohesion when its ideas connect naturally. Across these meanings, the underlying image remains almost unchanged: separate parts become stronger and more understandable through the connections between them.