Where does “deformalise” come from?

deformalise (English) comes from English de, from Chinese 德, from Mandarin 德意志, from German Deutsch, from Old High German diutsch, from Old High German diutisc, from Proto-West Germanic þiudisk, from Proto-Germanic þiudiskaz — to swell; to crowd; to be strong.

Ancestry of “deformalise”, step by step

deformalise traces back through two separate lines of ancestry.

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

via English formalise

StepLanguageWordMeaning
1EnglishformaliseAlternative spelling of formalize
2EnglishformalBeing in accord with established forms; Official;...
3Middle Englishformel
4Old Frenchformel
5Latinformālisformal
6French-ïsme-ism, variant of -isme following vowels
7Latin-ismaAlternative form of -ismus; -ism
8Latin-ismus-ism
9Ancient Greek-ισμόςForms abstract nouns
10Ancient Greek-μόςForms abstract nouns
11Proto-Indo-European-mósCreates action/result nouns from verb stems
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tewtéh₂Every word from Proto-Germanic þeudō