Where does “screwback” come from?

screwback (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.

screwback (English): The period of screw rotation during injection...

Definitions

  1. The period of screw rotation during injection...

Ancestry of “screwback”, step by step

screwback 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 screw

StepLanguageWordMeaning
1EnglishscrewA device that has a helical function; The motion...
2Middle Englishscrew
3Old Frenchescrouenut, cylindrical socket, screwhole; scroll, strip...
4Latinscrofasow
5Proto-Indo-European(s)kerbʰ-to scratch, scrape
6Proto-Indo-European(s)ker-to cut off; to turn, bend
7Proto-Indo-Europeansek-to cut, cut off, sever
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius