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grandpa (n.)
[grandpa 词源字典]
1814, shortening of
grandpappa
(1753), childish or familiar form of
grandfather
(see
grand-
+
pa
).
Grandpappa
is recorded from 1753,
grandpop
from 1860,
grandpappy
from 1853.
[grandpa etymology, grandpa origin, 英语词源]
[grandpa 词源字典]