Answer: trenail

AnswerCrossword Clue
TRENAILWooden spike used in ship-building.
TRENAILWooden spike.
TRENAILWooden peg.
TRENAILWooden peg: Var.
TRENAILShipbuilding peg
trenailwooden pin that swells when moist, used for fastening together timbers, as those of ships
trenaila wooden peg used to fasten timber, also TREENAIL, TRUNNEL