A small metal tip or sheath attached to the end of a cord, ribbon, or shoelace to make it easier to thread through holes or loops.
From Old French 'aguillette', diminutive of 'aguille' meaning 'needle', the metal tip resembles a tiny needle point and was used to stiffen cord ends.
Your shoelaces have aiglets! They're called aglets in modern English, and without them, threading laces would be nearly impossible—this simple invention from the Middle Ages is still on almost every shoe you wear.
Complete word intelligence in one call. Free tier — 50 lookups/day.