The practice, beliefs, or characteristics associated with grandmothers; behavior or attitudes typical of or attributed to grandmothers.
From grandmother plus the suffix -ism, which creates nouns referring to practices, doctrines, or systems. This is a rare word that follows the pattern of similar constructions like feminism or paternalism.
This word perfectly captures how grandmothers often become symbols of traditional wisdom, comfort, and continuity—there's actually been academic interest in how grandmother knowledge shaped survival and child-rearing across cultures!
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