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MEASURE THE GRAPH ↗NOT JUST A DICTIONARY LOOKUP
6 EVIDENCE COLLECTIONSSEARCH
THE GRAPH.
Find a modern word—or search sideways through reconstructed roots, historical forms, meanings, languages, scholars, sources, claims, disputes, and witnesses.
MODERN ENTRY POINTS
WORD DOSSIERS
muscle
A body tissue or organ whose English name descends through French from Latin musculus, a diminutive of mūs “mouse.”
OPEN THE FULL LINEAGE ↗mussel
A bivalve mollusk whose English history runs through Middle English muscle and Old English muscelle into the same Latin mouse family as muscle.
OPEN THE FULL LINEAGE ↗mouse
The inherited English name of the small rodent, continued from Old English mūs and the reconstructed Indo-European *mūs- family.
OPEN THE FULL LINEAGE ↗μυς
The Modern Greek anatomical word for muscle, continued from Ancient Greek μῦς, which could name both a mouse and a body muscle.
OPEN THE FULL LINEAGE ↗ATTESTED / RECONSTRUCTED / BOUNDARY
HISTORICAL FORMS
muscle
contractile body tissue; later strength or coercive power
- DATE
- 14th century–today
- MATCH
- exact historical form
- DOSSIERS
- 1
muscle
a muscle or muscular organ
- DATE
- Middle English
- MATCH
- exact historical form
- DOSSIERS
- 1
muscle
muscle
- DATE
- Old French
- MATCH
- exact historical form
- DOSSIERS
- 1
muscle
a mussel
- DATE
- Middle English
- MATCH
- exact historical form
- DOSSIERS
- 1
*mūs-
mouse; also the family behind specialized muscle words
- DATE
- Proto-Indo-European prehistory
- MATCH
- gloss
- DOSSIERS
- 4
musculus
little mouse; muscle; also a mussel name
- DATE
- Latin antiquity
- MATCH
- gloss
- DOSSIERS
- 2
μυς
mysa body muscle; in learned use, also a mouse
- DATE
- Modern Greek
- MATCH
- gloss
- DOSSIERS
- 1
μῦς
mŷsmouse; also a muscle of the body
- DATE
- Ancient Greek literary record
- MATCH
- gloss
- DOSSIERS
- 1
WHERE INTERPRETATION IS TESTED
CLAIMS & DISPUTES
SCHOLARLY DISPUTES / 5
What exactly resembled a mouse?
The naming may refer to the shape of a muscle, a tendon, or movement visible beneath the skin; the reviewed sources do not select one mechanism as secure.
Is musculus really a “little mouse”?
Latin musculus is morphologically the diminutive of mūs “mouse.”
Did anatomical muscle reach English through French?
The anatomical English word passed through Middle English and Old French from Latin musculus.
Do mussel and muscle share the Latin mouse family?
The English words have distinct immediate histories but converge in the Latin musculus / mūscula family derived from mūs.
Are Greek mouse and muscle merely accidental homonyms?
The reviewed Liddell–Scott entry treats μῦς as one lexical entry with both rodent and body-muscle senses, and Modern Greek explicitly derives both learned senses from Ancient Greek.
CONTRARIAN TRUTHS / 4
A muscle was a “little mouse.”
Latin musculus is a diminutive of mūs “mouse.” The derivation is secure; the exact resemblance mechanism remains qualified.
Mussel and muscle were once spelling twins.
Middle English could spell the shellfish muscle. The shellfish and anatomical words ultimately belong to Latin’s mouse-derived musculus family, though the naming resemblance itself is not fully recoverable.
English mouse is not a Latin loan.
English mouse follows its inherited Germanic line while Latin mūs is a cognate branch. Their resemblance reflects common ancestry, not a direct Latin-to-English borrowing.
In Greek, a muscle is still a mouse.
Ancient Greek μῦς named both the rodent and a body muscle. Modern Greek μυς preserves the anatomical branch and records the mouse sense as learned vocabulary.
BOOKS / DICTIONARIES / ARTICLES / DATABASES
SOURCES
Muscle and Mussel — Homophones with More Than One Syllable
Merriam-Webster Editors / 2026
title prefixAUDIT EVERY USE ↗Muscle — Word History
Merriam-Webster Editors / 2026
title prefixAUDIT EVERY USE ↗Muscle — Word History
American Heritage Dictionary Editors / 2026
title prefixAUDIT EVERY USE ↗FIRST USES & HISTORICAL OBJECTS
ATTESTATION WITNESSES
John Harris’s Lexicon technicum prints MUSCLE as a headword and defines its role in voluntary animal motion.
muscle / muscle / 1704
Lexicon technicum: or, an universal English dictionary of arts and sciencesexact attested form / OPEN RECORD ↗English lexicographic first-use record for muscle
muscle / muscle / 14th century
Muscle — Word Historyexact attested form / OPEN RECORD ↗SEARCH IS DISCOVERY, NOT PROOF
EVERY RESULT OPENS A PERMANENT EVIDENCE RECORD.
Matching text only locates a record. It does not raise confidence, settle a dispute, establish cognacy, or turn a source report into direct inspection. Follow the result into its citations and editorial limits.