grandmomn.
/ˈɡran(d)mɒm/, U.S. /ˈɡræn(d)ˌmɑm/, /ˈɡræ(m)ˌmɑm/ colloquial (originally and chiefly North American).
An informal term for: a grandmother.
ΘΚΠ
society > society and the community > kinship or relationship > kinsman or relation > grandparent > [noun] > grandmother
eldmotherc1000
grandamc1225
good-dame1400
grandmother1424
beldamc1440
lucky1629
granny1659
grandmama1694
lucky minnie1755
grandma1772
grandmammy1789
gran1829
babushka1834
abuela1836
grandmom1860
grandmum1861
grammy1886
dadi1888
minnie1888
grams1893
bubbe1895
nana1899
gram1923
nanny1927
lola1934
abuelita1937
oma1948
nain1954
nan1955
makulu1980
omi1988
1860 A. B. Street Woods & Waters ii. 15 Grandpop got it from grandmom, who got it from old Aunty Strides.
1964 in R. D. Abrahams Deep down in Jungle ii. iv. 148 He had the nerve enough to ask your grandmom for a piece.
2015 Los Angeles Times (Nexis) 21 Apr. a7 She looks at the world through the prism of being a mom and now a grandmom.
This is a new entry (OED Third Edition, December 2015; most recently modified version published online March 2022).
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n.1860