Definition - An incorrect or improperly formed technical term, especially in biology and botany.

For example, the term hypernym is a caconym: it is an incorrectly formed neologism because it is derived from -onym but the o has been dropped.

Etymology -
The word derives from the Greek caco, bad + onyma, name.

Oxford English Dictionary -
Its first citation is from 1889.
(Century Dictionary)

Example Usages -

1. "A name may qualify as a caconym in different ways. First, from sheer length.… Second, from the clash of consonants making it difficult (for a European at least) to articulate."
(Source: 1956 Nat. Cactus & Succulent Jrnl. II. 3/1 )

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