-kainen

-kka +‎ -inen

-kainen (front vowel harmony variant -käinen, linguistic notation -kAinen)

1. Creates nouns referring to things or beings that have a quality defined by the headword.

   ‎ainoa (“only”) + ‎-kainen → ‎ainokainen (“singleton; only child”)

   ‎karhu (“bear”) + ‎-kainen → ‎karhukainen (“water bear”)

   ‎kaunis (“beautiful”) + ‎-kainen → ‎kaunokainen (“beauty”)

   ‎lapsi (“child”) + ‎-kainen → ‎lapsukainen (“little one”)

   ‎nuori (“young”) + ‎-kainen → ‎nuorukainen (“youngster”)

   ‎outo (“strange”) + ‎-kainen → ‎outokainen (“strangelet”)

   ‎pieni (“little”) + ‎-kainen → ‎pienokainen (“little one”)

2. Used to create terms of endearment, or sometimes belittling terms.

   ‎keiju (“fairy”) + ‎-kainen → ‎keijukainen (“fairy”)

   ‎lyhyt (“short”) + ‎-kainen → ‎lyhykäinen (“short, shortish”)

   ‎neito (“maiden”) + ‎-kainen → ‎neitokainen (“damsel”)

The suffix often triggers labialization in the final vowel of the stem, much in the same way as -kka does sometimes.

• -niekan, ankein, kanien