You searched for: “cinch
1. A girth for a saddle, consisting of a thick strap secured by passing the end through two metal rings.
2. To get a tight grip on.
3. Informal, to make certain; to secure, or to guarantee.
4. Etymology: American English, "saddle-girth", from Spanish cincha, "girdle"; from Latin cingulum, "a girdle"; from cingere, "to surround, to encircle".

The sense of "an easy thing" is from about 1898, via the notion of "a sure hold".

This entry is located in the following unit: cingo-, cing-, -cinct- + (page 1)