There is a second arch within, which is really divided by a mullion or small pillar.
I discovered, too, that Tamsin had ridden from Kynance to mullion on horseback.
It seems he has come specially from mullion in Cornwall to be present this afternoon.
In the tracery beneath, at the head of the mullion, was a statue.
She had been once to Cornwall, to mullion and it had been just like that!
They are square-headed, and divided by a mullion and transom.
The upper part is arched, and down the centre of the arch runs a mullion.
The mullion flew asunder; a quatrefoil shifted a little, robbed of its support.
Don't you think you ought to have lived on in mullion House?
The end of the ram smote the mullion fairly and powerfully, where it was already cracked.
"vertical column between the lights of a window," 1560s, metathesis of Middle English moyniel (early 14c.), from Anglo-French moinel, noun use of moienel (adj.) "middle," from Old French meien "intermediate, mean" (see mean (adj.)). Related: Mullioned.
An unattractive person: Either you're a mullion, a dog
[1970s+ Baseball; origin unknown]