haecceity Meaning, Definition & Usage

  1. noun the essence that makes something the kind of thing it is and makes it different from any other
    quiddity.

WordNet

Hæc*ce`i*ty (Also<
  • Haecceity
  • Hæcceity
)
Etymology
L. hæcce this.
Definitions
  1. (Logic) Literally, this-ness. A scholastic term to express individuality or singleness; as, this book.

Webster 1913