Meaning

2 senses
  1. (historical, transitive)To protect the timbers of (a ship) with plates of copper secured with copper nails or bolts.

  2. (Ireland, UK, figuratively, transitive)To reinforce, strengthen; to make permanent, embed.

Origin

From copper + fasten. From copper sheathing of ship hulls (to protect from damage by marin

From copper + fasten. From copper sheathing of ship hulls (to protect from damage by marine organisms. Originally copper sheathing but non-copper bolts were used, leading to corrosion. Later copper bolts (fasteners) were also used, eliminating corrosion issues. Literal sense from 18th century, metaphorical sense attested 1948.

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Forms

copperfastens, copperfastening, copperfastened, copperfastened
Base formcopperfasten · to copperfasten
3rd person singularcopperfastens
Present participlecopperfastening
Past simplecopperfastened
Past participlecopperfastened

regular · Lesson

Present simpleLesson

I, you, we, theycopperfasten
he, she, itcopperfastens

Past simpleLesson

all personscopperfastened

Present perfectLesson

I, you, we, theyhave copperfastened
he, she, ithas copperfastened

Future simple (will)Lesson

all personswill copperfasten

Word family

3 related words

See also

neighbours in the dictionary
copperfasten — meaning, examples, forms, synonyms | Krumeto