A South Carolina woman is not happy that a grocery store censored her honours graduate son's cake, which was supposed to include the Latin phrase "Summa Cum Laude".

Cara Koscinski told The Washington Post a cake online from Publix was supposed to say "Congrats Jacob! Summa Cum Laude class of 2018''.

She said the online message box did not like the word "cum", the Latin word for "with". The computer marked it as a naughty word and substituted three hyphens.

Ms Koscinski said she then filled in a box for special instructions, explaining the Latin word and placed the $70 order. Another family member picked up the cake, not knowing what it was supposed to say.

It came with the hyphens.

She said the store gave her a refund and a gift card when she complained.

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