Possible Roots
Having run my phonetic constraints though the Conlang Word Maker, I came up with a nice set. The CWM does not, alas, seem to recognize things like special characters or putting colons after vowels, so I'll having to decide which ones are rounded and which aren't on my own.
Looking over this list, I see a bunch of consonant clusters I don't like. I'll have to refine them down a little. Also there are some words that end in y and w, which should have been impossible, and I dunno where the capital L down there comes from. But these results are quite promising. My especial favorites are bolded.
gebir
fbot
klid
efmen
tnik
sad
dut
taklir
yas
soby
odwil
swomar
son
ednir
sor
dokn
alaf
yon
nosus
ofun
sis
dutad
lalum
apnik
tar
irar
aslug
nulad
onir
fus
swomib
okin
rifnir
yadet
tam
sol
iwal
sut
bos
wowon
skitn
ged
difn
oresd
dalit
lis
oyag
ftut
ftLidit
agidy
skin
midn
uroft
dosor
wan
soyot
ogufdL
aser
fnal
tur
kurun
sitm
saf
sitos
ukotm
isog
ramasm
got
dusit
yusap
tafy
dis
ifus
twol
sisusw
lat
dil
esuskL
rap
issan
tanal
gasom
uras
gisk
radr
bofkib
fod
asos
usripn
popasr
pim
safur
sir
tas
ular
dad
idor
ludob
osok