"Aye" ... according to most English Dictionary definitions is an old~fashioned affirmative word meaning 'YES'.

Although increasingly used by folk everywhere, it is believed to owe its origins to the Scots - in spite of what those from the likes of Tyneside & Yorkshire might tell you - and so, today I attempted to enumerate the number of times I'd heard it repeated in the course of conversation during the short, 2-mile bus drive from Perth City Centre to the stop nearest our house.

Alas, I failed miserably and lost count ...

... aye!