There are a few nominals ending in -ut or -yt, wher in the inflectional stem
the -t changes to -e-, which is then dropped before the plural -i-. The group
includes kevyt ‘light’, lyhyt ‘short’, ohut ‘thin’, olut ‘beer’. The nouns mies
‘man’ and kevät ‘spring’ also have unusual declensions.
Inflectional stem followed by:
Basic Partitive Case Plural Possessive
form singular (except suffix
part. sing.)
lyhyt short lyhyt/tä lyhye/n lyhy/i/ssä –
olut beer olut/ta olue/n olu(e)/i/ssa olue/ni
mies man mies/tä miehe/n mieh/i/ssä miehe/ni
kevät spring kevät/tä kevää/n kevä/i/ssä kevää/ni
New loan words ending in a final consonant form their inflectional stem by
adding the vowel i, which changes to e before the plural -i- (§16.6). Cf.
stadion ‘stadium’: stadioni/n, stadioni/a, stadione/i/ta. Loan words with a
final -s, however, generally decline like ajatus nominals (§20.2), e.g. anis
‘aniseed’: anikse/n, anikse/ssa, anis/ta (part. sing.).