A ventilation slit is to let fresh air into the castle and to shoot arrows from.
Moat high ground, slit windows
An arrowslit is a slit, such as can be seen in a castle wall, through which arrows can be fired.
It's called a loop-hole or sometimes an arrow loop
The past tense of "slit" is "slit" and the past participle is also "slit."
Slitting is the present participle of slit.
Bum slit is an inborn thing.
The slit windows or archers' windows of medieval castles were also called loopholes.
The past participle is also slit.
Youngg.
Henry Ruttan has written: 'Ruttan's ventilation and warming, or, How to make home healthy' -- subject(s): Nutrition, Ventilation 'Ventilation and warming of buildings' -- subject(s): Ventilation, Heating and ventilation, Railroads, Heating, Railroad cars 'Ventilation and warming of buildings' -- subject(s): Ventilation, Heating and ventilation, Heating, Railroad cars 'Lecture on ventilation' 'Lectures on the ventilation of buildings' -- subject(s): Buildings, Constructions, Ventilation
there is no past tense for the word slit srry :(
A fissure is a slit or groove.