What is the meaning of Katar?

Alternative form of katara (“type of dagger”).

catarrh

Cathar

catarrh

comb, crest (of birds)

fern of the genus Sphaeropteris, specifically Sphaeropteris lunulata or Sphaeropteris nigricans

catarrh, cold

runny nose

Cathar, Catharist

itch

caravan

convoy

waggons

third-person singular indicative aorist of katmak

catarrh

Introduced in Volapük Nulik.

Source: wiktionary.org