-toniacomb. form

Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly.
Origin: A borrowing from Latin. Etymon: Latin -tonia.
Etymology:  <  scientific Latin -tonia (in e.g. dystonia  dystonia n.)  <  ancient Greek -τονία   (in ἀτονία  atony n.)  <  τόνος  tone n.   + -ία  -ia suffix1.Compare French -tonie  , German -tonie  . With the form -tony   compare -y suffix3. F. Swediaur ( Novum nosologiae methodicae systema (1812) II. 71) uses the scientific Latin terms dystonia   and hypertonia  , modelled on the Greek forms ἀτονία  atony n.   and εὐτονία   tension. The Greek forms δυστονία   and ὑπερτονία   cited by Swediaur are apparently not attested. French hypertonie   is attested slightly earlier, in 1803. The form -tony   is more widely used to form compounds with senses relating to sound or tone, e.g. homotony n. at homo- comb. form 1.
This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2021).