Hasefer
Hasefer, rendered in Hebrew as ha-sefer, is simply the definite form of the noun sefer, meaning “the book.” In Hebrew, the definite article ha- attaches to nouns, so sefer becomes hasefer when referring to a specific book. The term is not a proper noun by itself but a common word used across Modern Hebrew and Jewish study to denote books in general or a particular volume in context.
The root sefer means book or scroll, reflecting ancient manuscript culture. In contemporary usage, hasefer functions
The plural form, sefarim, refers to books in general and is especially common in discussions of Jewish