Where does “fine-tooth comb” come from?

fine-tooth comb (English) comes from English comb, from English combination, from Middle English combinacioun, from Old French combination, from Late Latin combinatio, from Latin combino, from Latin com-, from Latin con- — resin, gum; to say, speak.

fine-tooth comb (English): A comb with fine, closely spaced teeth, especially one used for removing head lice and their nits (eggs) from the hair; a nit comb

Definitions

  1. A comb with fine, closely spaced teeth, especially one used for removing head lice and their nits (eggs) from the hair; a nit comb

Ancestry of “fine-tooth comb”, step by step

fine-tooth comb traces back through 3 separate lines of ancestry.

via English comb

StepLanguageWordMeaning
1EnglishcombA toothed implement for grooming the hair or for...
2EnglishcombinationThe act of combining, the state of being combined...
3Middle Englishcombinacioun
4Old Frenchcombination
5Late LatincombinatioA joining, two by two
6LatincombinoI combine, unite
7Latincom-allomorph of con-
8Latincon-Used in compounds to indicate a being or bringing...
9Latincumwith, along with; at; -fold
10Old LatincomAlternative form of cum
11Proto-Italickomwith, along, at
12Proto-Indo-Europeanḱómbeside, near, by, with
13Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
14Middle Englishkyt
15Germankittputty certain kinds of cement used for fixing e.g. window panes
16Old High Germankuti
17Proto-West Germanickwidugum, resin
18Proto-Germanickweduzresin
19Proto-Indo-Europeangʷet-resin, gum; to say, speak

via English fine

StepLanguageWordMeaning
1EnglishfineSenses referring to subjective quality; Senses...
2Germanfeinfine; fine; very good; as it should be; refined;...
3Middle High Germanfīn
4Old Frenchfinfine, delicate
5Latinfīnisend
6Proto-Indo-Europeandʰnh₂-

via English tooth

StepLanguageWordMeaning
1EnglishtoothA hard, calcareous structure present in the mouth...
2Middle EnglishtothAlternative form of tothe
3Old Englishtōþtooth
4Proto-Germanictanþstooth
5Proto-Indo-Europeanh₃dóntstooth
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu