diagram
Meaning
A simplified drawing or plan that shows the exact shape, arrangement, or workings of something.
To represent something in a diagram.
Structure
Usage
The teacher drew a diagram of the human heart on the board.
The manual includes a diagram showing how to assemble the furniture.
She diagrammed the sentence to understand its grammatical structure.
Etymology
The word 'diagram' has a clear and logical construction from ancient Greek elements. It combines the prefix dia-, meaning "through" or "across," with the root -gram, derived from graphein ("to write") and meaning "something written or drawn." Literally, it signifies a drawing with lines "going across" or "marked out by lines," which perfectly captures its function as a graphic outline. This Greek compound entered English via Latin diagramma, retaining its core meaning of a geometric figure or explanatory sketch used to demonstrate relationships or structure visually.
Analysis
dia: A prefix of Greek origin meaning "through, across, apart." gram: A combining form from Greek gramma, meaning "something written, a letter, a drawing."