BT Men 29b(30) :חטרי להו לגגיה דחית‏ : they write the top of the ḥeth with a protrusion
See the entire entry for gg n.m. roof, top horizontal of a letter

BT Men 29b(30) :חזינן להו לספרי דווקני דחטרי להו לגגיה דחית‏ : we note that accurate scribes make a tick on the top stroke of the ḥeth
See the entire entry for dawqān adj. accurate, exact

BT Men 29b(30) :חטרי להו לגגיה דחית‏ : they write the top of the ḥet with a protrusion
See the entire entry for ḥṭr vb. to strike with rods