different between cobblestone vs boulderstone

English

Etymology

From Middle English cobylstone, cobyllstone, kobilstane, kobill-stane, equivalent to cobble +? stone. Compare Old Norse köppusteinn (“boulder”), Danish kampesten (“boulder”).

Pronunciation

• (General American) IPA^(key): /?k?bl??sto?n/
• (Received Pronunciation) IPA^(key): /?k?bl??st??n/
• Hyphenation: cob?ble?stone

Noun

cobblestone (plural cobblestones)

1. A rounded stone from a river bed, fit for use as ballast in ships and for paving roads.
2. (uncountable) The material made from cobblestones.

Synonyms

• cobble (as backformation)

Translations

References

• Webster's Seventh New Collegiate Dictionary, Springfield, Massachusetts, G.&C. Merriam Co., 1967

Further reading

• cobblestone on Wikipedia.Wikipedia

English

Etymology

boulder +? stone

Noun

boulderstone (plural boulderstones)

1. A rounded stone that is larger than a pebble; a cobblestone.
2. A boulder.
   • 1844, Johann Georg Kohl, Ireland

     Against the huge boulderstones which lay scattered about on the shore, the mighty waves broke incessantly in the maddest and most diversified manner.