|Nominative||tasar, tasarë||tasari||tasalli, tasareli||tasart, tasaret|
|Accusative||-, tasaré||tasari||tasallí, tasarelí||-|
|Dative||tasarn, tasaren||tasarin||tasallin, tasarelin||tasarnt, tasarent|
|Possessive||tasarwa, tasareva||tasariva||tasallíva, tasarelíva||tasartwa, tasaretwa|
|Genitive||tasaro||tasarion||tasallion, tasarelion||tasarto, tasareto|
|Allative||tasarenna||tasarinnar, tasarennar||tasallinnar, tasarelinnar||tasarnta, tasarenta|
|Ablative||tasarello||tasarillon||tasallillon, tasarelillon||tasallto, tasarelto|
|Instrumental||tasarnen, tasarenen||tasarinen||tasallínen, tasarelínen||tasarenten|
A point of interest concerning tasar is its usage in two Lord of the Rings-era compounds; they appear in a verse related by Fangorn, or Treebeard, the Ent:
In the willow-meads of Tasarinan I walked in the Spring.The word tasari is clearly visible in the first compound, where it is coupled with the element nan# "woodland" (LT:261) also of clear relation to Q nanda "water-mead" and S nand, nann "grassland" (NAD, Etymologies 417). The place name Tasarinan clearly corresponds with the preceding phrase "willow-meads". The other construction is again of the element nan, here prefixed to the genitive plural of tasar: tasarion. It means, roughly, "mead/plain of willows".
Ah! the sight and the smell of the Spring in Nan-tasarion!
And I said that was good.
# The word nan has the stem nand-, which manifests in declension and compounds in which it is the first element; I will frequently make reference to this phenomenon, called stem variation, with he pound (#) sign.