From quadri- (“four”) + the second part of triumvir (“rule by three men”). Cf. Latin quattuorvir.
quadrumvir (plural quadrumvirs)
You can also try words with the phrase QUADRUMVIR, words starting with the letters QUADRUMVIR, or words ending in the letters QUADRUMVIR.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
SIOUJGB, RDDOO, PYHSHSI, RRTU, LCPWI, PVOZNX,