[tetrazine]

I believe ancient linguistic nuances like this are sometimes divined from formally structured poetry, among other sources. Also analysis of languages thought to share a common ancestor could imply near-identical pronunciation in the past

[dragonwriter]

> I believe ancient linguistic nuances like this are sometimes divined from formally structured poetry

Given that formally structured poetry in English (not sure if the same is true of other current languages) often uses somewhat different from usual pronunciation (in ways that are both immediately obvious to a reader familiar with the poetic style, and understandable if unusual to a listener hearing the spoken poem), I would worry that leaning too heavily on this as evidence might potentially be misleading .