telephonic

English

Etymology tree

Proto-Indo-European *kʷelh₁-der.

Ancient Greek τῆλε (têle)lbor.

French télé-

Proto-Indo-European *bʰeh₂-der.

Proto-Hellenic *pʰōnā́

Ancient Greek φωνή (phōnḗ)der.

French -phone

French téléphonebor.

English telephone

Proto-Indo-European *-kos

Proto-Indo-European *-ikos

Proto-Italic *-ikos

Latin -icuslbor.

Old French -iquebor.

Middle English -ik

English -ic

English telephonic

From telephone + -ic.

telephonic (not comparable)

Of, pertaining to, or transmitted by telephony.
- 1962 July, G. Freeman Allen, “The New "Rheingold"”, in Modern Railways, page 25:
  There is two-way telephonic communication between kitchen, scullery, buffet and staff in the corridor between buffet and dining saloon.

of or relating to telephony