scythe

viikate

niittää An instrument for mowing grass, grain, or the like, by hand, composed of a long, curving blade, with the concave edge sharped, made fast to a long handle, called a snath.
A scythe-shaped blade attached to ancient war chariots.
puhekieltä To cut with a scythe; to cut off as with a scythe; to mow.
puhekieltä To attack or injure as if cutting.
2011, Catherine Sampson, The Pool of Unease

The boy began to keen, and the high-pitched noise scythed through Song's head.