ply

travel a route regularly

“Ships ply the waters near the coast”

give what is desired or needed, especially support, food or sustenance

apply oneself diligently

join together as by twisting, weaving, or molding

“ply fabric”

one of the strands twisted together to make yarn or rope or thread; often used in combination

“three-ply cord”

use diligently

“ply your wits!”

one of several layers of cloth or paper or wood as in plywood

wield vigorously

“ply an axe”