Where does “across the pond” come from?

across the pond (English) comes from English across, from Middle English acros, from Anglo-Norman an croiz.

Ancestry of “across the pond”, step by step

across the pond traces back through two separate lines of ancestry.

via English across

StepLanguageWordMeaning
1EnglishacrossTo, toward, or from the far side of; On the...
2Middle EnglishacrosIn the shape of a cross
3Anglo-Normanan croiz—

via English the [[pond]]

StepLanguageWordMeaning
1Englishthe [[pond]]—
Every word from Anglo-Norman an croiz →Every word from Middle English acros →Every word from English across →