Schoolbook (noun)

1. A textbook used in schools for teaching a particular subject.
2. A book designed for educational purposes, especially for young children.

Origin:

The word 'schoolbook' originated in the 16th century from the combination of 'school' and 'book'. it was first used to refer to books used in schools.

Examples:

1. The schoolbook covered all the topics required for the final exams.
2. The children learned to read from a schoolbook designed for beginners.
3. The history schoolbook was filled with colorful illustrations and interactive elements.
4. The teacher assigned a new schoolbook for each subject every semester.
5. The schoolbook was updated every few years to reflect the latest research and developments.