-έω

Etymology
There are five main sources:


 * 1) Primary verbs (present verbs of the simple thematic class in origin) from roots ending in, ,  with intervocalic loss of this consonant: e.g. , ,
 * 2) Denominative verbs with, from  + , usually from nouns or adjectives in  or : e.g.  from ,  from
 * 3) Denominative verbs with, usually from adjectives in  or neuter nouns in : e.g.  from . These often have an alternative form in , for instance.
 * 4) Stative verbs with : e.g. ,
 * 5) Causative or frequentative verbs from o-grade of a root with : e.g. ,

Usage notes
If the root lemma is a noun, then -έω is a denominative suffix, if an adjective -έω is a stative suffix, if a verb -έω is a causative or frequentive suffix.