Where does “Policespeak” come from?

Policespeak (English) comes from English police, from Middle French police, from Latin polītīa, from Ancient Greek πολιτεία, from Ancient Greek πολῑ́της, from Ancient Greek -της, from Proto-Hellenic -tāts, from Proto-Indo-European -teh₂ts — Creates verbal adjectives from verb stems.

Policespeak (English): A constructed language for police and emergency service cooperation at the Channel Tunnel, using a limited vocabulary drawn from French and English

Definitions

  1. A constructed language for police and emergency service cooperation at the Channel Tunnel, using a limited vocabulary drawn from French and English

Ancestry of “Policespeak”, step by step

Policespeak traces back through two separate lines of ancestry.

via English police

StepLanguageWordMeaning
1EnglishpoliceA civil force granted the legal authority for law...
2Middle Frenchpolicegovernance; management
3Latinpolītīastate, government, administration
4Ancient Greekπολιτείαthe relation in which a citizen stands to the...
5Ancient Greekπολῑ́τηςcitizen
6Ancient Greek-τηςForms nouns representing a state of being; Added...
7Proto-Hellenic-tāts
8Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
9Proto-Indo-European-teh₂Used to form nouns representing state of being
10Proto-Indo-European-tósCreates verbal adjectives from verb stems

via English speak

StepLanguageWordMeaning
1EnglishspeakTo communicate with one's voice, to say words out...
2Middle Englishspeke
3Old EnglishspecanAlternative form of sprecan; to speak
4Old Englishsprecanto speak, talk
5Proto-West Germanic*sprekanto speak
6Proto-Germanicsprekanąto speak, to make a noise
7Proto-Indo-Europeanspreg-to make a sound, speak; to make a sound, utter,...
Every word from Proto-Indo-European -tósEvery word from Ancient Greek -τηςEvery word from Ancient Greek πολῑ́της