Artificial intelligent assistant

stemson

stemson Naut.
  (ˈstɛmsən)
  [f. stem n.2, after keelson, kelson.]
  (See quot. 1769.)

1769 Falconer Dict. Marine (1780), Stemson, an arching piece of timber fixed within the apron to reinforce the scarf thereof. 1849 Longfellow Build. Ship 178 Stemson and keelson and sternson-knee. 1886 Encycl. Brit. XXI. 819/1 The foremost end of the keelson scarphs to the stemson.

Oxford English Dictionary

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