Machig (མ་གཅིག་) means "one mother." Machig Labdrön (1055-1149) was the Tibetan female yogi who founded the Chöd ("cutting through") practice — one of the few major Tibetan Buddhist lineages founded by a woman. Considered an emanation of the dakini Vajrayogini.
Subject of The Life of Machig Labdrön (12th-c. biography).
Machig does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Machig reduce to 5, The Seeker. This is a traditional interpretive system, not a factual claim about the name.