Strong's #7575: Rithmah (pronounced rith-maw')
feminine of 7574; Rithmah, a place in the Desert:--Rithmah.
Brown-Driver-Briggs Hebrew Lexicon:
rithmâh
Rithmah = "heath"
1) station of Israel in the wilderness, probably northeast of Hazeroth
Part of Speech: noun proper feminine locative
Relation: from H7574
Usage:
This word is used 2 times:
Numbers 33:18: "And they departed from Hazeroth, and pitched in Rithmah."
Numbers 33:19: "And they departed from Rithmah, and pitched at Rimmon-parez."