From riyb; quarrel -- provocation, strife.
see HEBREW riyb
H4808. meribah
I. מְרִיבָה noun feminine strife, contention; — absolute ׳מ, of quarrel between herdsmen Genesis 13:8 (J); construct הָעֵדָה מְרִיבַת, of people's strife with Moses at Kadesh Numbers 27:14 (P), compare II. ׳מ 2