Reanalysed from-ation -tion Middle French -tion -cion Latin -tiō surface analysis , this suffix is added to verbs derived from Latinperfect participle stems.
Itself pronouncedIPA (key ) : /ən/ , and changes the preceding consonant to/ʃ/ usually or/t͡ʃ/ or/ʒ/ in some cases.
-ion
( no longerproductive ) action orprocess , or theresult of an action or process.( no longerproductive ) state orcondition .“-ion ”, inOneLook Dictionary Search . Possiblyreanalysed frominion Ancient Greek -ιος ( -ios ) .
-ion
Ananthropometric reference point.Especiallycraniometric points FromAncient Greek ἀπόγειον ( apógeion ,“ apogee ” ) , containing-ιον ( -ion ) . Compare also-ium
-ion
Together withapo- andperi- , forms names of specificapoapsides andperiapsides . -ion f
-ion -ion f genitive -ion plural -ionen
-ion -ion
alternative form of-ien ( “ -ian ” ) -ion
alternative form of-ioun -ion
-illion (used to form multiples of 1000: balion «million», telion 1.000.000.000, kilion 1.000.000.000.000) Volapük Grammatical Forms
FromProto-Brythonic *-onos *-onā Cornish -yon Breton -ien
-ion
Pluralisation suffix Synonyms: -aid -aint -au -ed -edd -en -i -iadau -iaid -iau -od -oedd -on -ydd -yr -ys seiciatrydd ( “ psychiatrist ” ) + -ion → seiciatryddion ( “ psychiatrists ” ) cymydog ( “ neighbour ” ) + -ion → cymdogion ( “ neighbours ” ) mab ( “ son ” ) + -ion → meibion ( “ sons ” ) -ion
Noun suffix tir ( “ land ” ) + -ion → tirion ( “ territory, plain, grassland ” ) 
