serk
*sewyós
seXul
skeut
*smeru-
*sneigwh-
sneigwh
*sneudh-
**só
so
*sóh₂wl̥
*solwo-
speno
*speu-
*steh₂-
ster
sweks
*swel-
*swep-
swep
*swordós
*syuh₁-
teh₂
*ténh₂us
*tep-
*ters-
*tód
*tong-
*tréyes
treyes
tu7
*túh₂
túhₓ
*twékos
*udero-
udero
uei
uodr
*wāt-
wdont
*wed
*weh₁-
wéi
weid
wekʷ
*wem-
*wet-
*wéy
*weyd-
*wi
Proto-Indo-European