glad
Meaning
pleased and happy
willing and eager to do something
causing happiness
Usage
i'm so glad you could make it to the party.
she was glad to help with the preparations.
it was a glad occasion for the entire family.
Etymology
the word "glad" has a direct lineage from old english "glæd," meaning bright, shining, cheerful, or pleased. this old english term is derived from proto-germanic gladaz, which carried the sense of shiny or smooth. the semantic evolution is a classic example of a metaphorical shift from a physical property to an emotional state, moving from the visual quality of brightness to the inner feeling of joy and pleasure. this root is further traceable to the proto-indo-European ghel-, meaning to shine, which is also the ancestor of words like "gold" and "glass," reinforcing the original connection to light and radiance.
Analysis
the word "glad" is a simplex word of germanic origin. it functions as a whole, unanalyzable root in modern english.