Fore sworn (IPA: /fɔːʳswɔːn/) is a past participle of the verb foreswear. The word "fore" in this context means "previously" or "before", while "sworn" is the past participle of "swear". Together, "fore sworn" means "previously sworn". Foreswear means to renounce or give up under oath or solemnly promise to abstain from. The spelling of fore sworn reflects the way the word is pronounced in the English language, with the accent on the first syllable of "fore".
The word fore sworn has an Old English origin. It is a combination of two words: fore meaning before or in front of and sworn which derives from the Old English word swerian, meaning to promise or to take an oath. Therefore, fore sworn essentially means having made a previous oath or having sworn beforehand.