purr

kehräys

kehrätä puhekieltä Of a cat, to make a vibrating sound in its throat when contented.
puhekieltä To say (something) in a throaty, seductive manner.
2008, C. E. Osborne, Black Gold Death in the Sun (page 12)

"This is Cindy," she purred again, flashing a smile of perfect white teeth surrounded by full red lips.

He purred like a kitten when she massaged his neck.

Beverly passed the city limits sign with the Porsche's motor purring contentedly after its two hundred and fifty-mile romp.

Instead, the tiger looked around, and gave a purr, and then a growl. What did that mean? The man could not tell. Then the tiger just flung upon the man some of the sand from the side of the hollow.

The trill of her purr echoed inside his mouth when he kissed her again. Clutching at his shirt, her fingers traveled the muscles in his back.

I sat still in the car and listened to the soft purr of the engine and my beating heart. Then slowly, and as silently as possible, I drove the car back to camp.