felett (“above”) + -i (adjective-forming suffix). It is an adjective formed from a postposition, so that it can be used attributively to mark the qualifier of a noun (preceding it), rather than marking the modifier of a verb (or verb derivative), like an adverbial.
feletti (not comparable)
| Inflection (stem in -e-, front unrounded harmony) | ||
|---|---|---|
| singular | plural | |
| nominative | feletti | felettiek |
| accusative | felettit | felettieket |
| dative | felettinek | felettieknek |
| instrumental | felettivel | felettiekkel |
| causal-final | felettiért | felettiekért |
| translative | felettivé | felettiekké |
| terminative | felettiig | felettiekig |
| essive-formal | felettiként | felettiekként |
| essive-modal | — | — |
| inessive | felettiben | felettiekben |
| superessive | felettin | felettieken |
| adessive | felettinél | felettieknél |
| illative | felettibe | felettiekbe |
| sublative | felettire | felettiekre |
| allative | felettihez | felettiekhez |
| elative | felettiből | felettiekből |
| delative | felettiről | felettiekről |
| ablative | felettitől | felettiektől |
| non-attributive possessive - singular |
felettié | felettieké |
| non-attributive possessive - plural |
felettiéi | felettiekéi |