Anna, now look, see what you started? <grin>
tsuwm the vector--I love it!

Dragging this thread back to language, I found a link on the etymology of geometry terms. Here's a sample: trigonometry -- trigon + the Greek word for measure. Geo-metry is the measure of Gaia (Geo), the Earth.
http://ancienthistory.about.com/library/weekly/aa030601a.htm