There are over fifty scholarly comments on the meaning of the word Maseeh (Messiah). They said that this word is applied both to the Truthful One (True Messiah, i.e. ‘Eesa) and to the misleading liar (the “antichrist” or Dajjaal).
The Messiah is the Truthful One, ‘Eesa ibn Maryam (Jesus the son of Mary), the Messiah of guidance, who healed those who were born blind and lepers, and brought the dead to life by Allaah’s Leave.
The false messiah (al-maseeh al-dajjaal) is the liar who leads people astray, the messiah of misguidance who will tempt people by means of the signs that he is given, such as bringing down rain, reviving the earth to bring forth vegetation, and other “miracles.”
So Allaah (ﷻ) has created two messiahs, who are opposites of one another.
The scholars said that the reason why the Dajjaal is called maseeh is because one of his eyes is mamsooh (lit. “wiped”; smooth or abraded i.e., he will be blind or defective in one eye). Or it was said that it is because he will survey or travel throughout the earth (yamsah) in forty days…
The former view is more correct, because of what was said in the hadeeth of Anas ibn Maalik (رضي الله عنه), who said: “The Messenger of Allaah (ﷺ) said: ‘The Dajjaal will be blind (mamsooh) in one eye, and between his eyes will be written ‘kaafir’…’
[Sahih Muslim, Hadith No. 5221]
Meaning of the word Dajjaal
The word Dajjaal is taken from the expression “Dajjala al-ba’eer (he smeared the camel)”, referring to when they covered it with tar.
The root dajala means to mix. The word dajala is used to mean deliberately confusing matters and being vague and ambiguous, The Dajjaal is the one who speaks in vagaries, who tells many lies and deceives many people.
The word “Dajjaal” became a title given to the lying, one-eyed, false messiah. The Dajjaal is so called because he will conceal his kufr from the people by lying to them, deceiving them and confusing them.