Where does “grandmama” come from?

grandmama (Esperanto) comes from Esperanto granda, from French grand, from Middle French grand, from Old French grant, from Old French -ur, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs — Creates action nouns or result nouns from verbs;...

grandmama (Esperanto): big-breasted

Definitions

  1. big-breasted

Ancestry of “grandmama”, step by step

grandmama traces back through two separate lines of ancestry.

via Esperanto granda

StepLanguageWordMeaning
1Esperantograndabig, large
2Frenchgrandbig, great, grand; tall; Great, an honorific...
3Middle Frenchgrandbig; large
4Old Frenchgrantbig, large
5Old French-ur-er, used for form agent nouns
6Latin-orused to form a third-declension masculine...
7Proto-Italic-ōsCreates masculine action nouns or result nouns...
8Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
9Proto-Indo-European-oss
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via Esperanto mamo

StepLanguageWordMeaning
1Esperantomamobreast
2Latinmammaa breast; an udder; a pap; a teat, a dug
3Latinferōto bear; to carry
4Proto-Italicferōcarry, bear
5Proto-Indo-Europeanbʰéretito be carrying
6Proto-Indo-Europeanbʰēr-shiny, light brown
Every word from Proto-Indo-European -os