Westing

• (n.) The distance, reckoned toward the west, between the two meridians passing through the extremities of a course, or portion of a ship`s path; the departure of a course which lies to the west of north.
Found on http://thinkexist.com/dictionary/meaning/westing/

Westing

West'ing noun (Naut. & Surv.) The distance, reckoned toward the west, between the two meridians passing through the extremities of a course, or portion of a ship's path; the departure of a course which lies to the west of north.
Found on http://www.encyclo.co.uk/webster/W/26

westing

space or distance westward
Found on http://phrontistery.info/w.html
No exact match found