marlinespike

[mahr-lin-spahyk] /ˈmɑr lɪnˌspaɪk/
noun, Nautical
1.
a pointed iron implement used in separating the strands of rope in splicing, marling, etc.
Also, marlinspike, marlingspike
[mahr-ling-spahyk] /ˈmɑr lɪŋˌspaɪk/ (Show IPA)
.
Origin
1620-30; orig. marling spike. See marl2, -ing1, spike1
British Dictionary definitions for marlinespike

marlinespike

/ˈmɑːlɪnˌspaɪk/
noun
1.
(nautical) a pointed metal tool used as a fid, spike, and for various other purposes