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dystocia
dystocia n. 
/dɪˈstɒkɪə/) difficult or painful childbirth. [ < post-classical Latin dystocia (1515 or earlier) < ancient Greek δυστοκία painful delivery < δύστοκος born for mischief ( < δυσ- dys- prefix + -τόκος bearing: see toco- comb. form) + -ία -ia suffix1.]
Brit. /dɪˈstəʊʃ(ɪ)ə/
, /dɪˈstəʊʃ(ɪ)ə/U.S. /dɪˈstoʊʃ(i)ə/
(also dystokia, incorrectly dystochia /dɪˈstoʊʃ(i)ə//dɪˈstɒkɪə/) difficult or painful childbirth. [ < post-classical Latin dystocia (1515 or earlier) < ancient Greek δυστοκία painful delivery < δύστοκος born for mischief ( < δυσ- dys- prefix + -τόκος bearing: see toco- comb. form) + -ία -ia suffix1.] ΚΠ
1706 Phillips's New World of Words (new ed.) Dystocia, a Difficulty of bringing forth.
1811 R. Hooper Quincy's Lexicon-medicum (new ed.) Dystochia.
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