Definition of "sarmon"

"I'm sure it is," she replied; "for at the very top it begins with 'Father Mulvaney's Sarmon.' " "A priest's sarmon put on the paper," repeated the good man, rubbing his hands gleesomely, and drawing his "creepie" closer to the fire; "let's have it, Grace.

1838, Mrs. S. C. Hall, Lights and Shadows of Irish Life‎, volume 2, page 73

The passage announced, his large features glowing with the warmth of love, he commenced thus: “ Noo, friends, I'm not bown [going] to preach ye a sarmon: you mun [must] take it warm off't backst'n. I never but yance [once] made a sarmon i' my life, an' then I cam into the chapel as prood as the divel could mak me.

1849, Robert Athow West, Sketches of Wesleyan Preachers‎, page 137

“Wall,” said the landlord, fetching a long breath, “that's a purty long sarmon for a chap that rips a little now and then".

1851, Herman Melville, Moby Dick: Or the Whale‎, page 44