*Source ending from genitive -v
**Goal ending is from the dative -m
***Manner and reason endings are related to the instrumental -d and dative -m endings respectively.
****There are four relative pronouns, wi, ope, opegi, oni. Wi and ope are equivalent, and opegi is a bit more formal. Ope and opegi, and several other relatives are derived from prefixing o- to interrogatives or other pronouns.. Neuter relative pronoun wo/opo/opego for abstract ideas, concepts, or entire phrases/clauses. Oni is similar to wi and ope but only refers to human antecedents.
Several of the forms above have alternative forms. Usually the longer form is for emphasis.