The word "lieth" is an archaic and rarely used form of the verb "lie," meaning to recline or rest in a horizontal position. It is spelled with the "th" ending, as opposed to the more common "lie" which ends in "ie." The correct pronunciation of "lieth" is /laɪθ/, with the "th" being pronounced as a voiceless interdental fricative sound. This pronunciation is similar to the "th" in "think" or "thought." Despite its rarity in modern English, "lieth" is still recognized as a valid spelling of the verb "lie."
The word "lieth" is a variant spelling of the archaic present tense third-person singular form of the verb "lie". The verb "lie" in this sense means "to recline or be in a horizontal position". The etymology of "lieth" can be traced back to the Old English word "līeþ", which is the indicative form of the verb "licgan" meaning "to lie". Over time, the pronunciation and spelling of the word changed, eventually evolving into "lieth" in Middle English. However, this spelling is no longer used in modern English, and the present tense third-person singular form of "lie" is now "lies".