Where does “snothead” come from?

snothead (English) comes from English snot, from English -ery, from French -erie, from Old French -erie, from Old French -ie, from Latin -ia, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

Ancestry of “snothead”, step by step

snothead traces back through two separate lines of ancestry.

via English snot

StepLanguageWordMeaning
1EnglishsnotMucus, especially mucus from the nose; A...
2English-eryAdded to nouns to form other nouns meaning the...
3French-eriedenoting a shop selling a certain product;...
4Old French-erieused to form feminine nouns
5Old French-ieindicates a feminine noun, often an abstract one
6Latin-iaUsed to form a feminine abstract noun, usually...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English head

StepLanguageWordMeaning
1EnglishheadThe part of the body of an animal or human which...
2Middle Englishheedhead; The chief, most renowned or most prominent...
3Old Englishhēafodhead; top; source, origin; chief, leader;...
4Proto-Germanichaubudąhead
5Proto-Indo-Europeankáput-head
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius