OS. [θ] ‹th›

OS. [θ] ‹th›

References ✧ PE17/131; VT42/27; VT47/14, 16

Element In

Phonetic Development

OS. aspirates became voiceless spirants θθ < ttʰ ✧ VT47/14 (tth > tt > þþ); VT47/16 (tth > þþ)
S. final [mf], [nθ], [ŋx], [lθ] became [mp], [nt], [ŋk], [lt] -lθ > -lt ✧ VT42/27 (lth > lt; finally)
S. final [mf], [nθ], [ŋx], [lθ] became [mp], [nt], [ŋk], [lt] -nθ > -nt ✧ VT42/27 (nth > nt; finally)
S. medial [mf], [nθ], [ŋx], [lθ] became [mm], [nn], [ŋg], [ll] -lθ- > -ll- ✧ PE17/131 (lþ > lh > ll); VT42/27 (lth > lh; medially)
S. medial [mf], [nθ], [ŋx], [lθ] became [mm], [nn], [ŋg], [ll] -nθ- > -nn- ✧ PE17/131 (nþ > nh > nn); VT42/27 (nth > nh; medially)
S. long voiceless spirants shortened θθ > θ ✧ VT47/14 (þþ > þ); VT47/16 (þþ > þ)

ON. [θ] ‹th›

References ✧ PE19/18, 20-21, 23

Element In

Phonetic Development

ON. aspirates became voiceless spirants θ < tʰ ✧ PE19/18 (th- > th/þ-); PE19/21 (thr- > thr-); PE19/21 (thl- > thl-); PE19/23 (-th- > -th-)
ON. voiceless stops became spirants after initial [s] sθ- < st- ✧ PE19/20 (st- > sth-)
ON. initial [s] became [θ] before [l], [r] θl- < sl- ✧ PE19/21 (sl- > thl-)
ON. initial [s] became [θ] before [l], [r] θr- < sr- ✧ PE19/21 (sr- > thr-)
N. initial [s] vanished before spirants sθ- > θ- ✧ PE19/20 (sth- > th-)