Mammoth Uncensored Word List:
68 words ending with x, 5 letters long

addax adfix admix affix annex beaux bemix bolix borax bronx calix calyx carex choux cimex codex comix culex cylix desex detox dewax embox enfix forex galax hapax helix hyrax immix inbox index infix kylix latex limax linux lurex malax mirex murex panax phlox podex pyrex radix redox redux refix relax remex remix retax rewax salix silex sorex teaux telex unbox unfix unmix unsex untax varix vibex vitex xerox