Why do they abreviate number with No. ?

From Latin, “Numero.”

I’ve been told it’s an abbreviation of “numero”, which means “number” in heck if I know which language.
The Dutch also abbreviate it like that, sometimes. There’s no O in our word for number either.

Edit: What @laureth said.

in awesomeland we use Nr.

Because of Latin (I tried linking the wikipedia article for “No.” but fluther doesn’t understand how to deal with links that have periods. You’ll have to find your way there).

Here’s a Wkipedia link that works.

@Sarcasm Damn those… Lats.

(ignore the word “several”)

It like pound is lb, the latin I would guess. And not sure why Ounce is Oz.

@JLeslie: Maybe because The Wizard of Ounce just doesn’t cut it?