Green’s Dictionary of Slang

attensh n.

attention.

1917		Harper’s Mag. 376/2: ’Ere is dat littla chain I make for you — an’ ’ere is de en’ of dat chain wair I stop makin’ ’er when I see you ain’ pay no attensh.
1922		U. Illinois Alumni Quarterly 15 July 215: We’ve a lot more for next time, and thank you for your kind attensh.
1934		Wodehouse Right Ho, Jeeves 98: My attensh had been wandering.