Where does “back-butt” come from?

back-butt (English) comes from English back, from French bac, from French baccalauréat, from Medieval Latin baccalaureatus, from Latin baccalaureus, from Latin laurea, from Latin laurus, from English -aceous — Creates adjectives from noun or verb stems.

back-butt (English): Buttocks

Definitions

  1. Buttocks

Ancestry of “back-butt”, step by step

back-butt traces back through two separate lines of ancestry.

via English back

StepLanguageWordMeaning
1EnglishbackNear the rear; Not current; Far from the main...
2Frenchbacferry; vat; high school exit exam in France; A...
3Frenchbaccalauréatbaccalaureat; bachelor's degree
4Medieval Latinbaccalaureatusbachelor's degree
5Latinbaccalaureusbachelor
6Latinlaurealaurel, bay tree; crown, wreath or branch of...
7Latinlauruslaurel tree; laurels; a crown of laurel
8English-aceousOf, relating to, resembling or containing the...
9Latin-āceusaceous; resembling, having the nature of, forming, belonging to
10Latin-āxish, -y
11Latin-iumSuffix used to form abstract nouns, sometimes...
12Latin-iusforming adjectives from nouns; nominative neuter...
13Proto-Italic-jōsForms comparative adjectives
14Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English butt

StepLanguageWordMeaning
1EnglishbuttThe larger or thicker end of something; the blunt...
2Middle Englishbutten
3Anglo-Normanbuterto strike, finish
4Old Frenchboterto push, butt, strike; to strike; to push; thrust
5Old Frenchbouterto strike; to hit; to place; to put; to enter
6Frankishbautanto push, strike, beat; to hit, strike; to hit,...
7Proto-West Germanicbautanto beat
8Proto-Germanicbautanąto beat, push
9Proto-Indo-Europeanbʰewd-to hit, strike; to beat, push; to strike, push,...
10Proto-Indo-Europeanbʰew-to grow, swell; to swell, wax, grow; to blow; to...
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius