δίφθογγος

Ancient Greek

Etymology

From δι- (di-, “two”) +‎ φθόγγος (phthóngos, “sound”).

Pronunciation

(1^st CE Egyptian) IPA^(key): /ˈdipʰ.tʰoŋ.ɡos/
(4^th CE Koine) IPA^(key): /ˈðiɸ.θoŋ.ɡos/
(10^th CE Byzantine) IPA^(key): /ˈðif.θoŋ.ɡos/
(15^th CE Constantinopolitan) IPA^(key): /ˈðif.θoŋ.ɡos/

Adjective

δῐ́φθογγος • (dĭ́phthongos) m or f (neuter δῐ́φθογγον); second declension (Koine)

with two sounds
(phonology, orthography) diphthongal (pertaining to a diphthong)

Declension

Second declension of δῐ́φθογγος; δῐ́φθογγον (Koine)

Number		Singular				Plural
Case/Gender		Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative		δῐ́φθογγος dĭ́phthongos		δῐ́φθογγον dĭ́phthongon		δῐ́φθογγοι dĭ́phthongoi		δῐ́φθογγᾰ dĭ́phthongă
Genitive		δῐφθόγγου dĭphthóngou		δῐφθόγγου dĭphthóngou		δῐφθόγγων dĭphthóngōn		δῐφθόγγων dĭphthóngōn
Dative		δῐφθόγγῳ dĭphthóngōi		δῐφθόγγῳ dĭphthóngōi		δῐφθόγγοις dĭphthóngois		δῐφθόγγοις dĭphthóngois
Accusative		δῐ́φθογγον dĭ́phthongon		δῐ́φθογγον dĭ́phthongon		δῐφθόγγους dĭphthóngous		δῐ́φθογγᾰ dĭ́phthongă
Vocative		δῐ́φθογγε dĭ́phthonge		δῐ́φθογγον dĭ́phthongon		δῐ́φθογγοι dĭ́phthongoi		δῐ́φθογγᾰ dĭ́phthongă

Derived terms

δῐφθογγῐ́ζω (dĭphthongĭ́zō)
δῐφθόγγῐσμᾰ (dĭphthóngĭsmă)
δῐφθογγῐστέον (dĭphthongĭstéon)
δῐφθογγογρᾰφέω (dĭphthongogrăphéō)
δῐφθογγογρᾰφῶ (dĭphthongogrăphô)
δῐφθογγόθετος (dĭphthongóthetos)
δῐ́φθογγον (dĭ́phthongon)
δῐφθογγόομαι (dĭphthongóomai)
δῐφθογγόω (dĭphthongóō)
δῐφθογγῶ (dĭphthongô)
δῐφθόγγως (dĭphthóngōs)

Noun

δῐ́φθογγος • (dĭ́phthongos) f (genitive δῐφθόγγου); second declension

(Koine, phonology, orthography) a diphthong
Alternative form: δῐ́φθογγον n (dĭ́phthongon)

Declension

Second declension of ἡ δῐ́φθογγος; τῆς δῐφθόγγου (Koine)

Case / #	Singular	Plural
Nominative	ἡ δῐ́φθογγος hē dĭ́phthongos	αἱ δῐ́φθογγοι hai dĭ́phthongoi
Genitive	τῆς δῐφθόγγου tês dĭphthóngou	τῶν δῐφθόγγων tôn dĭphthóngōn
Dative	τῇ δῐφθόγγῳ tēî dĭphthóngōi	ταῖς δῐφθόγγοις taîs dĭphthóngois
Accusative	τὴν δῐ́φθογγον tḕn dĭ́phthongon	τᾱ̀ς δῐφθόγγους tā̀s dĭphthóngous
Vocative	δῐ́φθογγε dĭ́phthonge	δῐ́φθογγοι dĭ́phthongoi

Further reading

“δίφθογγος”, in Liddell & Scott (1940), A Greek–English Lexicon, Oxford: Clarendon Press
δίφθογγος in Bailly, Anatole (1935), Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
δίφθογγος in the Diccionario Griego–Español en línea (2006–2026)

Greek

Noun

δίφθογγος • (dífthongos) m (plural δίφθογγοι)

(phonology, orthography) diphthong

Declension

Declension of **δίφθογγος**
	singular	plural
nominative	δίφθογγος (dífthongos)	δίφθογγοι (dífthongoi)
genitive	δίφθογγου (dífthongou)	δίφθογγων (dífthongon)
accusative	δίφθογγο (dífthongo)	δίφθογγους (dífthongous)
vocative	δίφθογγε (dífthonge)	δίφθογγοι (dífthongoi)

Related terms

διφθογγοποίηση f (difthongopoíisi, “diphthongisation”)
διφθογγισμός m (difthongismós, “diphthongisation”)