Where does “mug shot” come from?

mug shot (English) comes from English mug, from English motherfucker, from English fucker, from English -er, from Middle English -er, from Old French -er, from Latin -āre, from Proto-Italic -āō — he, she.

mug shot (English): A photograph taken of the head and shoulders,...

Definitions

  1. A photograph taken of the head and shoulders,...

Ancestry of “mug shot”, step by step

mug shot traces back through two separate lines of ancestry.

via English mug

StepLanguageWordMeaning
1EnglishmugEasily fooled, gullible; A large cup for hot...
2EnglishmotherfuckerAn extremely contemptible or mean person; Any...
3EnglishfuckerAn undesirable person; The object of some effort;...
4English-erA person or thing that does an action indicated...
5Middle English-eragentive suffix; agent noun suffix
6Old French-erAlternative form of -ier, verbal suffix;...
7Latin-ārefirst conjugation
8Proto-Italic-āōForms primarily denominative verbs
9Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
10Proto-Indo-European-yétiCreates intransitive, often deponent,...
11Proto-Indo-Europeanyé-
12Chichewaiyehe, she

via English shot

StepLanguageWordMeaning
1EnglishshotWorn out or broken; Woven from warp and weft...
2Middle EnglishschotA missile or projectile; a thrown or fired weapon
3Old EnglishScotshot, act of shooting
4Old Norseskot
5Proto-Germanicskutąshot
6Proto-Indo-European(s)kewd-to advance, push; to drive, propel
Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti
mug shot — Etymology, Origin & Word History | Etymology Explorer