An Etymological Dictionary of Astronomy and Astrophysics

The spatial dimensions, extent, proportions, amount, or degree of something.

Etymology (EN): M.E. syse originally “control, regulation, limit,” from O.Fr. sise shortened form of assise “session, regulation, manner.”

Etymology (PE): 1) Andâzé “measure, size” from Mid.Pers. andâzag, handâcak “measure,” handâxtan, handâz- “to measure,”
Manichean Mid.Pers. hnds- “to measure,” Proto-Iranian *hamdas-, from
ham-, → com-, + *das- “to heap, amass;” cf. Ossetic dasun/dast “to heap up;” Arm. loanword dasel “to arrange (a crowd, people),” das “order, arrangement,”