The spelling of the word "grandy" can be tricky, as it can be pronounced in different ways depending on the dialect. In General American English, it is typically pronounced as /ˈɡrændi/, with stress on the first syllable and the ending pronounced as "dee." However, in some British English dialects, it is pronounced as /ˈɡrandi/, with stress on the second syllable and the ending pronounced as "ee." Regardless of the pronunciation, the word typically refers to a grandfather or a male elder.
The etymology of the word "grandy" is not clear and does not have a widely accepted origin. It is primarily used as a slang term and its origin is likely related to colloquial usage. "Grandy" is often used as a diminutive or affectionate term for grandfather, similar to "granddad" or "grandpa". However, since it is a slang word, its exact origin and development are difficult to trace.