Word origin · etymology
Latin numerical name.
Quincunx literally means five twelfths, from quinque and uncia. Five twelfths of the zodiacal circle is 150 degrees.
How we know · epistemology
School-dependent angular rule
The modern 150° aspect is a chosen relationship. Older descriptions of signs lacking a classical aspect use a different concept, so sharing a name does not establish equivalent calculations or meanings.
Connected concepts
Browse other concepts in Aspects & angular relationships →
These links connect subjects and terminology. They do not establish a shared historical origin.
Sources & provenance
Use the citations beside each section to distinguish a calculation convention, a historical teaching and an editorial example.