The definition of 'participle' is something along the line of:
a word having the characteristics of both verb and adjective (M-W Dictionary)
the form of a verb that usually ends in "ed" or "ing" and is used as an adjective (Cambridge Dictionary)
The Oxford English Dictionary explains that the Latin term was used to refer to “a non-finite part of a verb” that shares “some characteristics of a verb and some of an adjective.” (Grammarphobia; I don't have access to OED, so...)
There is no mention of 'noun' above (which I think is reserved to be related to 'gerund'). So far so good.
But then, I've come across this definition of 'participle' in the online Oxford Dictionary:
A word formed from a verb (e.g., going, gone, being, been) and used as an adjective (e.g., working woman, burned toast) or a noun (e.g., good breeding). In English, participles are also used to make compound verb forms (e.g., is going, has been).
The same dictionary has this 'origin':
Late Middle English from Old French, by-form of participe, from Latin participium ‘(verbal form) sharing (the functions of a noun)’, from participare ‘share in’.
Quite confused, I had to look to Etymonline:
late 14c., in grammar, "a noun-adjective, a word having the value of an adjective as a part of speech but so regularly made from a verb and associated with it in meaning and construction as to seem to belong to the verb," from Old French participle in the grammatical sense (13c.), a variant of participe, and directly from Latin participium, literally "a sharing, partaking," also used in the grammatical sense, from particeps "sharing, partaking" (see participation). In grammatical sense, the Latin translates Greek metokhē "sharer, partaker," and the notion is of a word "partaking" of the nature of both a noun and an adjective.
This seems only to confirm the uncanny inclusion of 'noun' in the definition of 'participle' as in the above-referenced online Oxford Dictionary.
Does the etymological definition of 'participle' include 'noun'?
If so, how about the current definition?
If not, are both the online Oxford Dictionary and Etymonline simply wrong?