I guess everyone's definition of 'abnormal' is different. I love chocolate. Would I obsess over it? Other than once a month, maybe not quite so much.
I can't think of anyone who has an 'abnormal' love of a particular food.
Other strange words I found had to do with divination starting with the letter O. For example:
ololygmancy: fortune telling by the howling of dogs
oinomancy: divination using wine
omoplatoscopy divination by observing cracks in burning scapulae
omphalomancy divination from the knots in the umbilical cord
|onomancy||divination using a donkey or ass|
|onomancy||divination using proper names|
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