Meaning & Analysis
To struggle or defend oneself with every available means—down to the most basic bodily weapons, teeth and fingernails; i.e., with utmost effort and ferocity.
Insights
Total commitment
The phrase signals doing everything possible to achieve or defend a goal, exhausting strength, time, and ingenuity rather than yielding.
Primal defense
By invoking animal weaponry, it frames contest as survival-level: when rules and tools fail, raw instinct and resolve take over.
Loss aversion
It often marks fierce resistance to dispossession—of status, property, or belief—where the fear of losing what one has fuels disproportionate effort.
Improvised agency
When resources are scant, one fights ‘tooth and nail’—making do with what the body and will supply, turning scarcity into grit.
Meristic body-list
Like many traditional formulas that list body parts to imply the whole, ‘tooth and nail’ compresses total effort into two vivid points of contact—bite and claw—so the pair stands for comprehensive exertion.
Animal–civil boundary
The imagery dramatizes a slide from polite contest to bare survival, reminding hearers that beneath social varnish lies an animal readiness to fight when cornered.
Cross-linguistic kin
Renaissance sources pair it with Latin ‘manibus pedibusque’ (with hands and feet) and Italian turns that invert the order (‘nail and tooth’), showing a shared European habit of equating bodily weaponry with maximal endeavor.
Ethical ambivalence
Praised as grit in defense of the right, the same ferocity reads as obstinacy when guarding privilege or error; the proverb is morally neutral, valorizing intensity while leaving judgment to the cause.
Psychology of stakes
Threat and scarcity narrow attention and heighten persistence; the idiom captures the tunnel-vision of fighting for something felt as essential to one’s identity or security.
Rhetorical Devices
Merism
Pairing two parts (‘tooth’ and ‘nail’) implies the whole person’s effort, amplifying scope without extra words.
Synecdoche
Teeth and nails stand in for the fighter, making bodily tips emblematic of total combativeness.
Hendiadys
Two nouns joined by ‘and’ operate as one idea—an idiomatic unit meaning ‘with ferocious exertion.’
Consonance
The hard t/n sounds give the phrase bite and scrape, acoustically mirroring its combative sense.
Vivid imagery
Concrete, tactile pictures of biting and clawing make the intensity memorable and emotionally legible.
Transcription
Quotations
He doeth all thynges .. with tothe and nayle, as moche as in him lyeth.
He that hath endeueoured himselfe Manibus pedibusque, with tooth and nayle.
With tooth and naile.
[As in 1616 Dr.]
To put nail and tooth to't, viz. to do all one might, ones utmost and endeavour; the English saith to the same reverstly, Tooth and nail.
*With might and main.
*That is, with the utmost Endeavour.
Cross References
- See St., no. 790.
- M923 With might and main.
Related Proverbs
Original Scan

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