aglet
noun
ag·let ˈa-glət 
1
: the plain or ornamental tag covering the ends of a lace or point
2
: any of various ornamental studs, cords, or pins worn on clothing
Example Sentences
Recent Examples on the Web The benefit of knowing critical chores in a household seems heftier than knowing the technical term for the piece of plastic on the end of a shoelace — an aglet. 
Lily Jackson | Ljackson@al.com, al, 25 Apr. 2020 Customers may choose from themed packs with embroidered patches and laces, and a variety of grommets, aglets, lace bolts, as well as other do-it-yourself options using stencils. Joy Sewing, Houston Chronicle, 8 Dec. 2017 Telomeres are the tips of chromosomes that protect DNA while it's being copied -- like the aglet at the end of a shoelace that prevents it from fraying. Michael Nedelman And Susan Scutti, CNN, 2 July 2017 In addition to the leather tonal Swoosh, the shoes also have red lace aglets and Nike tags on the tongues. Jake Woolf, GQ, 19 June 2017
Lily Jackson | Ljackson@al.com, al, 25 Apr. 2020 Customers may choose from themed packs with embroidered patches and laces, and a variety of grommets, aglets, lace bolts, as well as other do-it-yourself options using stencils. Joy Sewing, Houston Chronicle, 8 Dec. 2017 Telomeres are the tips of chromosomes that protect DNA while it's being copied -- like the aglet at the end of a shoelace that prevents it from fraying. Michael Nedelman And Susan Scutti, CNN, 2 July 2017 In addition to the leather tonal Swoosh, the shoes also have red lace aglets and Nike tags on the tongues. Jake Woolf, GQ, 19 June 2017 Word History
Etymology
Middle English agglot, aglet, borrowed from Middle French aguillette, diminutive of aguille "needle, pin," going back to Old French, going back to Gallo-Latin acūcula, alteration (with ū from Latin acūtus "pointed") of Late Latin acucula "ornamental pin, pine needle," diminutive of Latin acus "needle, pin" — more at acute
First Known Use
14th century, in the meaning defined at sense 1