Answer: tracery

AnswerCrossword Clue
TRACERYGothic-window decoration
TRACERYDecorative Gothic openwork.
TRACERYOrnamental work.
TRACERYOrnamental work, as in Gothic windows.
TRACERYGothic openwork
TRACERYGothic-window lacework
TRACERYWindow ornamentation
TRACERYOrnamental work
TRACERYGothic window ornamentation
TRACERYDecorative openwork
traceryornamental pattern of interlacing lines
traceryornamental work of interlaced lines