Suomen kieli ulkomaalaisille/Sisältö/us-uus-y-yys nominals

This page is in development Partitive formation varies for example lupaus (nom.) > lupauksen (gen.) lupausta (ptv.) abstract noun lupaus permission is derived from luvata (to permit) verb stem lupaa- + -us (abstract noun formation) > laupaus (with standard dropping of the extra vowel) kaipaus (nom.) > kaipauksen (gen.) kaipausta (ptv.) abstract noun kaipaus longing or yearning is derived from kaivata (to yearn for, long for, to miss) verb stem kaipaa- +-us (abstract noun formation) > kaipaus (with standard dropping of the extra vowel) lisäys (nom.) > lisäystä (ptv.) abstract noun lisäys addition or increase is derived from lisätä ('to increase. add to) verb stem lisää- + -us (abstract nounn formation) > lisäys (with standard dropping of the extra vowel) lykkäys (nom.) > lykkäystä (ptv.) abstract noun lykkäys postponement is derived from lykätä to postpone stem lykkää- become (abstract noun, postponement) The group that forms differently are usually formed from nouns and adjectives. These forms have genitive forms where the s transforms to d but partitive forms where the s transforms to t. vapaus (nom.) freedom > vapautta rakkaus becomes rakkautta onnettomuus becomes onnettomuutta ystävyys becomes ystävyyttä kateus becomes kateuta pimeys becomes pimeyttä The rule is that if the word is derived from a nominal form, then the partitive will take the standard -ta or -tä ending which usually attached to nominals ending in a consonant. BUT, if the word is derived from an adjective (which may itself be derived from a verb) the s usually mutates to to a t before the -ta or -tä ending ius added.