Ten·​dai | \ ˈten¦dī \
plural -s

Definition of Tendai

: a Japanese Buddhist sect founded in the 9th century a.d. by Dengyo Daishi that is the doctrinal equivalent of the Chinese T'ien T'ai sect

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History and Etymology for Tendai

Japanese, from Chinese (Pekingese) t'ien1 t'ai2 t'ien t'ai, from T'ien1 T'ai2, mountain in Chekiang province, eastern China, where the doctrine was first formulated

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“Tendai.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Tendai. Accessed 16 May. 2021.

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