Core sense — a grave, a sepulchregenerated
1
A grave; a sepulchre. The plurals are أَجْدَاثٌ and أَجْدُثٌ.
J cites an example of the latter plural, but in that instance it is the proper name of a place.
The word belongs to the dialect of Tihámeh; the people of Nejd say جَدَفٌ.
Or, as some say, the ف in the second form is a substitute for the ث in the first, since اجداث is used as a plural by common agreement, while اجداف is not used.
Suh states in the R that the latter plural is used by Ru-beh.
Show Lane's original text
A grave; a sepulchre; pl. أَجْدَاثٌ (S, Msb, K) and أَجْدُثٌ ; (S, K;) of which latter, J cites an ex., but in this instance it is the proper name of a place. (TA.) It is of the dial. of Tihámeh: the people of Nejd say جَدَفٌ : (Msb:) or [as some say] the ف in the latter is a substitute for the ث in the former; for اجداث is used as a pl. by common consent, and اجداف is not used: (TA:) but Suh affirms, in the R, that the latter pl. is used by Ru-beh. (TA in art. جدف .)