saa sounds alittle like some chinese dialect words for "kill".

i believe a cantonese for "kill" is phonetically pronounced "saht" with the "t" at the end sounding more like an abrupt stop to the word and not sounding with the asperated "t" sound you hear/make when you typically say "t" (in english the "tee" has air going thru your teeth rather than stopping the sound at your teeth without air going out.

so the only difference btwn the two words is that in Randland, "Saa" is pronounced like saah with the word ending in an open vowel, while in cantonese, "kill" or "saht" sounds like "Saa" but the word ends by with an unasperated "t" with your tongue. (it doesnt sound like "saa-tuh" -- instead say "saht" but without the "uh" in "tuh". Just use your tongue to start to sound a "t" but pronounce the sound so it ends without any "uh".