clue
Clue began as clew, a ball of thread, then became a guide through a puzzle and finally a hint toward an answer.
Clue is a spelling variant of clew, an old word for a ball of thread. The image of thread guiding someone through a maze helped the word develop its figurative meaning: something that helps you find the way to an answer.
Language path
Follow the word through time.
Each step adds context. The route is a compact map of the languages and meanings that shaped the word we use today.
- 1Early Englishclew
a ball of thread
- 2Figurative useclew
a guide through a difficult path
- 3Modern Englishclue
a piece of information that helps solve something
Meaning today
A piece of evidence or information that helps solve a problem or mystery.
A detail worth knowing
A thread is still a useful metaphor for reasoning: follow one clue and it can lead you through the maze.
What the evidence supports
Clew meant a ball of thread in Old English. The figurative sense draws on the classical story of Ariadne’s thread guiding Theseus out of the labyrinth. The modern spelling clue separated from clew during the seventeenth century.
What the old meaning left behind
The physical idea of a guiding thread remains visible in phrases such as a line of inquiry and following a clue. A clue does not solve the maze by itself, but it gives the searcher a path to follow.
Sources and notes
This curated page summarizes the references below. When explanations compete or remain uncertain, we avoid presenting a memorable story as settled fact.
Keep following the thread.
serendipity
Serendipity was coined for the joy of finding something valuable or delightful by accident.
window
Window is an old Norse “wind-eye,” a practical image for an opening that lets air and light into a room.
school
School traces to a Greek word for leisure, because learning once belonged to the time set aside for serious conversation.
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