Where does “deregister” come from?

deregister (English) comes from English register, from Medieval Latin registrum, from Latin regesta, from Latin regerere, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro- — passed , crossed.

deregister (English): to unregister; to unsubscribe

Definitions

  1. to unregister; to unsubscribe

Ancestry of “deregister”, step by step

deregister traces back through two separate lines of ancestry.

via English register

StepLanguageWordMeaning
1EnglishregisterA formal recording of names, events, transactions...
2Medieval LatinregistrumA register; a book in which things are recorded
3Latinregestanominative feminine singular of regestus;...
4Latinregereresecond-person singular imperfect passive...
5Latinrĕ-back, backwards
6Latinprōdūcōto lead or bring forth, forward or out
7Latinprō-forward direction, forward movement
8Proto-Italic*pro-pro- see the Latin entry for further meanings
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed

via English de

StepLanguageWordMeaning
1EnglishdeTo do; Pronunciation spelling of the; A...
2Chinese
3Mandarin德意志
4GermanDeutschGerman
5Old High Germandiutsch
6Old High GermandiutiscAlternative form of diutisk; popular, vernacular;...
7Proto-West Germanicþiudiskof the people, popular, vernacular
8Proto-Germanicþiudiskazof the people, popular; of the tribe
9Proto-Germanicþeudōpeople, tribe
10Proto-Indo-Europeantewtéh₂people, tribe
11Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-