Dictionary

copper-bottomed en · ADJ

Pronunciation

• (Australia) audio

Etymology

From the copper sheathing applied to the bottom of a wooden ship to prevent damage from marine organisms. In literal sense 18th century, in figurative sense attested since at least 1807. The British idiomatic use comes from the fact that with Britain being a major naval power, there was always a ready market for copper in ship construction, making it a reliable commodity to invest in.

Meanings

1. (especially, of a ship or cookware, qualifier:literal) Having lower parts made of or covered by copper.
   • According to Robert Hulse, 'It's half worm, half mollusc, and there are more dead men at the bottom of the sea as a result of those things [shipworms] than all the naval battles put together. They're the reason you had copper-bottomed ships'. 2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 88:
2. (UK, idiomatic) Thoroughly reliable; secure.
   • The copper-bottomed angel at Messrs. Paff’s in Broadway. 1807, Washington Irving, Salmagundi

Forms

Relateds

copperfasten · gilt-edged · coppered

Translations (4)

pl z miedzianym dnem (having a copper bottom) · pl trwały (reliable) · ga coparthónach (having a copper bottom) · pl solidny (reliable)

wikipedia: Cutty Sark