Shastra

''Śāstra'' ( ) is a Sanskrit word that means "precept, rules, manual, compendium, book or treatise" in a general sense. The word is generally used as a suffix in the Indian literature context, for technical or specialized knowledge in a defined area of practice.

''Śāstra'' has a similar meaning to English ''-logy'', e.g. ecology, psychology, meaning scientific and basic knowledge on a particular subject. Examples in terms of modern neologisms include # 'physics', # 'chemistry', # 'biology', # 'architectural science', # 'science of mechanical arts and sculpture', # 'science of politics and economics', and # 'compendium of ethics or right policy'.

In Western literature, ''Śāstra'' is sometimes spelled as Sastra, reflecting a misunderstanding of the IAST symbol 'ś', which corresponds to the English 'sh'. Provided by Wikipedia