Word origin · etymology
Sanskrit calendrical word.
Tithi names a lunar day. The inherited technical meaning is secure; a deeper root or literal syllable breakdown is not established here.
Monier-Williams Sanskrit-English Dictionary: tithi (University of Hyderabad) ↗
How we know · epistemology
Solar–lunar phase geometry
The Moon–Sun longitude difference determines the tithi independently of civil midnight. Tithis have unequal clock durations and may cross a sunrise boundary; calendar use must distinguish the instantaneous value from the day's assigned value.
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Mentioned in 2 other entries
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