Spell for the reading you expect
Readers bring habits from languages they know. You cannot control every pronunciation, but you can remove unnecessary traps. Use the simplest spelling that produces an acceptable first attempt.
If two readings both sound fine, let the reader choose. A pronunciation note is useful when a wrong stress damages a rhyme, joke, or important distinction.
Mark stress in private notes
Write the stressed syllable in capitals on the character sheet: tha-LEN, I-ly-ra, vae-RUNE. This helps game groups, editors, and audiobook discussions without cluttering normal prose.
For a recurring suffix, settle the pronunciation once. Inconsistent stress across similar names sounds accidental unless the difference marks a region.
Use punctuation only when it speaks
An apostrophe may show a glottal stop, omitted sound, or boundary between roots. If it does none of those jobs, remove it. Decorative punctuation is hard to say during play and awkward in search.
Diacritics need the same discipline. Use them if the project teaches their sound and can display them reliably across formats.
Test names as a group
A clear name can still collide with another. Read a battle order, family argument, or council scene aloud. Similar openings disappear when spoken quickly.
Ask a new reader to pronounce the list before sharing your key. Their first attempts show what the spelling communicates in practice.