Meaning & Analysis
The phrase combines two words, 'might' and 'main', both of which historically mean power or strength. Therefore, it literally means to act with all of one's collective strength and force.
Insights
Total Commitment
The expression metaphorically represents the concept of total and absolute commitment. It signifies the application of all available resources—not just physical, but also mental, emotional, and spiritual—towards achieving a specific objective.
Intensity and Vigor
It symbolizes an act of supreme intensity and vigor. The phrase is used to describe actions that are not just forceful but are carried out with energetic, enthusiastic, and unrestrained power.
Unwavering Determination
The proverb conveys a sense of unwavering determination and relentless pursuit. The doubling of terms for 'strength' implies an exhaustive, all-encompassing effort that leaves no room for doubt or hesitation.
Linguistic Reinforcement
The phrase is a linguistic fossil known as a hendiadys, where two near-synonymous words are joined to express a single, intensified idea. 'Might' and 'main' both derive from Old English words for strength ('miht' and 'mægen'), and their pairing reflects a common stylistic device in Middle and Early Modern English used for rhythmic emphasis and reinforcement.
Psychology of Maximal Effort
Culturally, the expression champions the virtue of total effort and unwavering resolve. It evokes a psychological state of complete commitment, suggesting that significant goals can only be achieved by applying every available resource—physical, mental, and emotional—without reservation.
Cultural Resonance of Struggle
The proverb's association with the phrase 'tooth and nail' underscores its connotation of fierce, almost primal struggle. It is frequently used in literary and historical contexts to describe heroic battles, strenuous labor, or any intense, all-out endeavor, highlighting a cultural appreciation for vigorous action.
Rhetorical Devices
Hendiadys
The phrase uses two near-synonyms ('might', 'main') to convey a single concept of great force. This rhetorical tautology serves to intensify the meaning through repetition.
Alliteration
The repetition of the initial 'm' sound creates a pleasing rhythm and makes the expression more memorable and impactful.
Idiom
The phrase is a classic idiom, where the combined meaning ('with all one's force') is understood as a single unit, transcending the literal definitions of the individual words.
Transcription
Quotations
With herte mynde and harneys redy day and nyght Theyr enemyes to subdue, by power, mayne and myght.
I . . shott at him with might and maine.
Tooth and nail; with might and main.
Cross References
Related Proverbs
Original Scan

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