surmark

noun

sur·​mark

variants or sirmark

ˈsərˌmärk

1

: a mark made on the molds of a ship when building to show where the frames should be beveled

2

: a cleat temporarily placed on the side of a ship on the ways or in a ship dock to support the ribband against which the shores rest

Word History

Etymology

surmark from sur- + mark; sirmark probably alteration (influenced by sir entry 1) of surmark

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