Etymograph

English

isophone

From iso- + phone.

Formed from iso- + phone

Ancient Greek ἴσος ‘equal’

English iso-

Proto-Indo-European *bʰeh₂- ‘to shine’

Proto-Hellenic *pʰōnā́

Ancient Greek φωνή ‘sound’

French téléphone

English telephone

English phone

Today it means

noun An isogloss indicating where a certain phone, or speech segment, is found.

Language periods are conventional ranges, not dates for this word.

Etymograph / isophone