pertinate
/ˈpər.tɪ.neɪt/Definitions
1. verb
to proceed or be directed in a straight course without deviation
“The plane began to pertinate its course over the mountains.”
2. verb
to be persistent in a particular direction or course
“The river pertinates through the landscape for miles.”
3. noun
a line or course that is straight and unbroken
“The surveyor marked the pertinates on the map to determine the property line.”