מַסָּהMaççâh

proper name [of a location]: where Israel tried ׳ י in the wilderness (Exodus 17:7; Deuteronomy 6:16; Deuteronomy 9:22; Psalms 95:8; Deuteronomy 33:8)

Pronunciation: mas-saw' · Hebrew/Aramaic (Old Testament) · H4532

Same root

מַסָּהmaççâh · H4531a testing, of men (judicial) or of God (querulous)

Where it appears

Appears 5 times in the Bible.

Exodus 17:7 Moses named the place Massah (which means “test”) and Meribah (which means “arguing”) because the people of Israel argued with Moses and tested the Lord by saying, “Is the Lord here with us or not?”
Deuteronomy 6:16 You must not test the Lord your God as you did when you complained at Massah.
Deuteronomy 9:22 “You also made the Lord angry at Taberah, Massah, and Kibroth-hattaavah.
Deuteronomy 33:8 Moses said this about the tribe of Levi: “O Lord, you have given your Thummim and Urim—the sacred lots— to your faithful servants the Levites. You put them to the test at Massah and struggled with them at the waters of Meribah.
Psalms 95:8 The Lord says, “Don’t harden your hearts as Israel did at Meribah, as they did at Massah in the wilderness.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).