This question already has an answer here:
I wasn't sure, so I looked it up, and it would seem it's specific to single words.
1.) the derivation of a word. Synonyms: word origin, word source, derivation, origin.
2.) a chronological account of the birth and development of a particular word or element of a word, often delineating its spread from one language to another and its evolving changes in form and meaning. Synonyms: word history, word lore, historical development.
3.) the study of historical linguistic change, especially as manifested in individual words.
Obviously the following sentence would be easily understood, but is it technically correct? Or is there a better way to ask the following question?
“What is the etymology of the Baseball term 'meat hand'?”
As in a first-use, or how the phrase came to be, or what made it popular – etc. What I think of as “etymology”, but perhaps that word is more technical, and specific to the linguistic breakdown and origins of individual words.