מָהִירmâhîyr

quick, prompt, ready, skilled (Psalms 45:2; Ezra 7:6; Proverbs 22:29; Isaiah 16:5)

Pronunciation: maw-here' · Hebrew/Aramaic (Old Testament) · H4106

Same root

מָהַרmâhar · H4116properly, to be liquid or flow easily, i.e. (by implication); to hurry (in a good or a bad sense); often used (with another verb) adverbially, promptly

Where it appears

Appears 4 times in the Bible.

Ezra 7:6 This Ezra was a scribe who was well versed in the Law of Moses, which the Lord, the God of Israel, had given to the people of Israel. He came up to Jerusalem from Babylon, and the king gave him everything he asked for, because the gracious hand of the Lord his God was on him.
Psalms 45:1 Beautiful words stir my heart. I will recite a lovely poem about the king, for my tongue is like the pen of a skillful poet.
Proverbs 22:29 Do you see any truly competent workers? They will serve kings rather than working for ordinary people.
Isaiah 16:5 then God will establish one of David’s descendants as king. He will rule with mercy and truth. He will always do what is just and be eager to do what is right.

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).