Where does “roundback” come from?

roundback (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.

roundback (English): Kyphosis; Of furniture: having a curved back

Definitions

  1. Kyphosis; Of furniture: having a curved back

Ancestry of “roundback”, step by step

roundback 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 round

StepLanguageWordMeaning
1EnglishroundShape; Complete, whole, not lacking; Convenient...
2Middle Englishroundcircle, round
3Old Frenchreontround
4Latinretundusround
5Latinrotundusround, circular; spherical, rotund; rounded,...
6Latinrotōto turn, trend, wheel, roll, swing about, whirl, rotate; brandish
7LatinRotaan ecclesiastical appellate court in the Catholic...
8Proto-Italicrotā
9Proto-Indo-EuropeanHróth₂-eh₂
10Proto-Indo-EuropeanHreth₂-to run
Every word from Proto-Indo-European -yós