peeing
UK[ˈpiːɪŋ]US[ˈpiːɪŋ]
v
(present participle) The act of urinating.
Etymology
The word "pee" is a euphemistic slang term originating in the late 18th century, derived from the initial letter of the word "piss". "Piss" itself has a much longer history, entering Middle English from Old French "pissier", which is likely of onomatopoeic origin, imitating the sound of urination. The "-ing" suffix is the standard English present participle ending, used to form the gerund or continuous tense, indicating the action in progress. Thus, "peeing" is a modern, informal term for the act of urination, its form directly built from its simple, sound-imitating root.
Analysis
The word is a present participle form of the verb "pee". The base form "pee" is a euphemistic slang term of onomatopoeic origin, imitating the sound of urination.
Examples
The toddler is being potty trained and is learning to stop peeing in his diaper.
I think the dog needs to go outside because it's peeing on the carpet.
She excused herself from the meeting, saying she really needed to go peeing.