ON. [tʰn] became [ttʰ]; [tʰn] > [ttʰ]

ON. [tʰn] became [ttʰ]; [tʰn] > [ttʰ]
See OS. [tʰn] became [ttʰ] for discussion.

Phonetic Rule Elements

[tʰn] > [ttʰ]

Phonetic Rule Examples

patʰnā > pattʰā tʰn > ttʰ ᴹ✶pathnā > ON. pattha ✧ Ety/PATH