noun
word formed by keeping the first syllable(s) and adding 'moji'
A type of wordplay or slang, historically associated with court ladies' language (女房詞). The first one or two syllables of a word are kept and 'もじ' is appended. Rare in modern everyday use, but known as a linguistic curiosity.
See also: 女房詞
「文字詞」とは、例えば「かゆ」を「かもじ」と言うような言葉遊びの一種です。
'Moji-kotoba' is a kind of wordplay where, for example, 'kayu' (rice porridge) becomes 'kamoji'.
女房詞 is the broader category of court ladies' language, of which 文字詞 is a specific word-formation pattern.
From 文字 (moji, 'character') + 詞 (kotoba, 'word'). The exact historical derivation is uncertain, but it is associated with wordplay in classical Japanese court culture.