Russian
Alternative forms
-  кейф (kejf) (before the 2nd half of the 19th century)
Noun
кайф • (kajf) m inan (genitive ка́йфа, uncountable)
-  (colloquial) kif, euphoria caused by narcotic intoxication
-  (colloquial) bliss, pleasant idleness
Declension
Declension of кайф (inan sg-only masc-form hard-stem accent-a) 
|  | singular | 
| nominative | ка́йф kájf
 | 
| genitive | ка́йфа kájfa
 | 
| dative | ка́йфу kájfu
 | 
| accusative | ка́йф kájf
 | 
| instrumental | ка́йфом kájfom
 | 
| prepositional | ка́йфе kájfe
 | 
 
 
 
Derived terms
-  кайфова́ть (kajfovátʹ)
-  лови́ть кайф (lovítʹ kajf)