Some Non-Productive Affixes

 

Noun-forming suffixes -th,-hood
Adjective-forming suffixes -ly, -some, -en, -ous
Verb-forming suffix -en

 

Note. The native noun-forming suffixes -dom and -ship ceased to be productive centuries ago. Yet, Professor I. V. Arnold in The English Word gives some examples of comparatively new formations with the suffix -dom: boredom, serfdom, slavedom [15]. The same is true about -ship (e. g- salesmanship). The adjective-forming -ish, which leaves no doubt as to its productivity nowadays, has comparatively recently regained it, after having been non-productive for many centuries.