Word origin · etymology
Latin through Middle English.
From triplicitas, threefoldness. Each elemental triplicity contains three zodiac signs.
How we know · epistemology
Traditional correspondence
Elemental groupings and their rulers are historical interpretive conventions. In Lilly-style use, the triplicity ruler can depend on whether the chart is judged by day or night; use the named table and sect rule rather than treating one ruler list as universal.
Connected concepts
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Mentioned in 3 other entries
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.