Strong's #3071: Yhovah nicciy (pronounced yeh-ho-vaw' nis-see')
from 3068 and 5251 with the prononimal suffix; Jehovah (is) my banner; Jehovah-Nissi, a symbolical name of an altar in the Desert:--Jehovah-nissi.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
yehôvâh nissı̂y
Jehovah-nissi = "Jehovah is my banner"
1) the name given by Moses to the altar which he built in commemoration of the discomfiture of the Amalekites
Part of Speech: noun proper locative
Relation: from H3068 and H5251 with the prononimal suffix
Usage:
This word is used 1 times:
Exodus 17:15: "an altar, and called the name of it Jehovah-nissi:"