The quality of being reliable and trustworthy, especially in providing emotional support or fulfilling commitments. It creates feelings of security and confidence in relationships.
From Latin 'dependere' meaning 'to hang from' or 'rely upon,' with the suffix '-ability.' The emotional connotation evolved from the physical sense of structural support to psychological reliance.
Dependability is the foundation of secure attachment—children who experience consistent, reliable caregiving develop better emotional regulation and stronger relationships throughout life. It's literally wired into our survival instincts.
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