Green’s Dictionary of Slang

pure adv.

very much, absolutely, wholly.

[Scot]I. Welsh Decent Ride 68: Ye goat ching? [...] Ah pure wants tae dae a line.
[Ire]A. Killilea Boyo-wulf at https://boyowulf.home.blog 20 Mar. 🌐 Well we’ve all heard of those pure daycent kings of the Spear-Danes from donkeys’ years.
[Scot]G. Armstrong Young Team 19: Their two tap boys [...] geein it traight back, pure bold cunts.
[Ire]L. McInerney Rules of Revelation 231: ‘This house is pure empty when shit needs doing, isn’t it?’ Mel said.