noun
surcingle
SER-sing-gul/ˈsɜrˌsɪŋɡəl/
A strap encircling a body to secure a covering.
A surcingle holds the blanket securely around the horse's body.

Etymology
The pieces describe a girdle passed over an animal. The girdle image remains concrete here: a surcingle is an encircling strap or girth.
In context
And I put her surcingle on, she did fine.
More examples
- She loosens the surcingle before removing the horse's blanket.
- Check that the surcingle is snug but not too tight.
- A plain surcingle keeps the priest's robe in place.
Forms
surcingle · surcingles