Where does “pretenderism” come from?

pretenderism (English) comes from English pretender, from English tender, from English tend, from Middle English tenden, from Middle English attenden, from Old French atendre, from Latin attendō, from Latin ad- — in.

Ancestry of “pretenderism”, step by step

pretenderism traces back through two separate lines of ancestry.

via English pretender

StepLanguageWordMeaning
1EnglishpretenderA person who professes beliefs and opinions that...
2EnglishtenderSensitive or painful to the touch; Easily bruised...
3EnglishtendTo make a tender of; to offer or tender; To be...
4Middle EnglishtendenTo ignite; to light or set on fire
5Middle Englishattendento attend
6Old Frenchatendreto wait
7Latinattendōto pay attention, attend (to), direct the attention towards
8Latinad-to; usually prefixed to verbs, in which cases it...
9Latinīn-un-, non-, not
10Latinînin, at, on, upon, from (space)
11Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
12Proto-Italicenin
13Proto-Indo-Europeanh₁énin

via English ism

StepLanguageWordMeaning
1EnglishismAn ideology, system of thought, or practice that...
2English-ismUsed to form nouns of action or process or result...
3Latin-ismus-ism
4Ancient Greek-ισμόςForms abstract nouns
5Ancient Greek-μόςForms abstract nouns
6Proto-Indo-European-mósCreates action/result nouns from verb stems
Every word from Proto-Indo-European h₁én