• Cacography (noun): English Meaning - Bad spelling; bad handwriting. Bangla Meaning - ভুল বানান; অসুন্দর হস্তলিপি।
Other options, Graphology - The study of handwriting especially for the purpose of character analysis; Analysis of handwriting. Paleography - The study of ancient or antiquated writings and inscriptions. Stenography - The art or process of writing in shorthand.
Source: 1. Merriam-Webster Dictionary. 2. Accessible Dictionary by Bangla Academy.