hobnail
/ˈhɒbnɛɪl/Definitions
1. noun
A nail, especially a large one, used on shoes, especially boots, to provide a firm hold for the leather.
“The old cowboy’s boots had a distinctive hobnail pattern on the soles.”
2. verb
To provide or equip with hobnails.
“The cobbler hobnailed the boots to make them more durable.”