Proto-Indo-European root meaning "to ask, entreat."
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit prasna-, Avestan frashna- "question;" Sanskrit prcchati, Avestan peresaiti "interrogates;" Latin precari "ask earnestly, beg, entreat;" Old Church Slavonic prositi, Lithuanian prašyti "to ask, beg;" Old High German frahen, German fragen, Old English fricgan "to ask" a question.
"to curse, imprecate evil upon," hence "to detest utterly, abominate," 1560s, from Latin execratus/exsecratus, past participle of execrari/exsecrari "to curse, utter a curse, take a solemn oath with imprecations; hate, abhor," from ex "out" (see ex-) + sacrare "to devote to" (see sacred). Hence, "to devote off or away; to curse." Compare consecrate. Related: Execrated; execrating.