/ θiˈɒsəfi; NAmE θiˈɑːs-/ noun
1.
[ U , C ] a religious system of thought that tries to know God by means of meditation , prayer, etc.
2.
Theosophy [ U ] the belief of a religious group, the Theosophical Society, started in New York in 1875
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WORD ORIGIN
mid 17th cent.: from medieval Latin theosophia , from late Greek , from theosophos wise concerning God, from theos god + sophos wise.