In 1866, the German chemist August Wilhelm von Hofmann came up with a system for naming hydrocarbons. The suffixes -ane, -ene, -ine, -one, and -une were used to call the hydrocarbons with 0, 2, 4, 6, and 8 fewer hydrogen atoms than the alkane it came from. Because of this system, ethylene became ethene.
ɪ n WORD_BOUNDARY w ʌ n WORD_BOUNDARY θ aʊ z ə n d WORD_BOUNDARY eɪ t h ʌ n d ɹ ɪ d WORD_BOUNDARY s ɪ k s t i WORD_BOUNDARY s ɪ k s WORD_BOUNDARY ð ə WORD_BOUNDARY d̠ʒ ɜː m ə n WORD_BOUNDARY k ɛ m ɪ s t WORD_BOUNDARY ɔ ɡ ə s t WORD_BOUNDARY w ɪ l h ɛ l m WORD_BOUNDARY v ɑ n WORD_BOUNDARY h ɑ f m ə n WORD_BOUNDARY k eɪ m WORD_BOUNDARY ʌ p WORD_BOUNDARY w ɪ ð WORD_BOUNDARY ʌ WORD_BOUNDARY s ɪ s t ə m WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY n eɪ m ɪ ŋ WORD_BOUNDARY h aɪ d ɹ ə k ɑ ɹ b ə n z WORD_BOUNDARY ð ə WORD_BOUNDARY s ʌ f ɪ k s ɪ z WORD_BOUNDARY eɪ n WORD_BOUNDARY iː n WORD_BOUNDARY ɪ n iː WORD_BOUNDARY w ʌ n WORD_BOUNDARY æ n d WORD_BOUNDARY j uː n WORD_BOUNDARY w ɜː WORD_BOUNDARY j uː z d WORD_BOUNDARY t ə WORD_BOUNDARY k ɔ l WORD_BOUNDARY ð ə WORD_BOUNDARY h aɪ d ɹ ə k ɑ ɹ b ə n z WORD_BOUNDARY w ɪ ð WORD_BOUNDARY z iə ɹ oʊ WORD_BOUNDARY t uː WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY s ɪ k s WORD_BOUNDARY æ n d WORD_BOUNDARY eɪ t WORD_BOUNDARY f j uː ə ɹ WORD_BOUNDARY h aɪ d ɹ ə d̠ʒ ə n WORD_BOUNDARY æ t ə m z WORD_BOUNDARY ð ʌ n WORD_BOUNDARY ð ɪ WORD_BOUNDARY æ l k eɪ n WORD_BOUNDARY ɪ t WORD_BOUNDARY k eɪ m WORD_BOUNDARY f ɹ ʌ m WORD_BOUNDARY b ɪ k ʌ z WORD_BOUNDARY ʌ v WORD_BOUNDARY ð ɪ s WORD_BOUNDARY s ɪ s t ə m WORD_BOUNDARY ɛ θ ɪ l iː n WORD_BOUNDARY b ɪ k eɪ m WORD_BOUNDARY iː θ iː n WORD_BOUNDARY