forestaff

forestaff [fawr-staf, -stahf, fohr-] ExamplesWord Origin noun, plural fore·staves, fore·staffs.

1. cross-staff.

Origin of forestaff First recorded in 1660–70; fore- + staff1 Examples from the Web for forestaff Historical Examples of forestaff

The pilots were all Indians, and they used the forestaff and quadrant for their observations.

Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7

Various