Argentine or Argentinian?

[HeadFairy]

When used to describe someone from Argentina? Which is it? We can't decide (am at work, busy as you can tell )

I think

Argentine - when describing people.
Argentinian - when describing objects.

Sorry, that should be singular person and singular object!

so my mum is Argentine and she has some Argentinian boots... is that correct?

I think so... am off to google it!

Argentinian. Not Argentine.

Isn't Argentine the geographical area?

May be totally wrong.

when my grandfather emigrated from there in the 1900s it was "the Argentine" not sure what he was though ...

There's no difference in terms of whether it's describing people or objects. Both are correct. Argentine is more old-fashioned and has a rather colonial ring to it. It sets my teeth on edge actually. Argentinian is the more common, modern term.

I lived in Argentina for a while so I speak with a modicum of pedantic authority!