Words Rudyard Kipling Taught Me (II)

Patteran, a set of coded signs made with sprigs or something, typically associated with gypsies. (Definition)

From, appropriately, "The Gipsy Trail":

Follow the Romany patteran
North where the blue bergs sail,
And the bows are grey with the frozen spray,
And the masts are shod with mail.

I’ll be able to use this one in a sentence, werd.