Here's what rhymes with externity.
eternity fraternity modernity taciturnity confraternity Words that almost rhyme with externity
externally eternally sturdily jerkily perfectly certainty diversity courtesy absurdity internally purposely circuitry perversity burgundy learnedly fraternally maternally paternally infernally certainly currency currently commercially nervously fervently thermally cursorily virtuously fervency discernibly thirstily emergency uncertainty deservedly insurgency wordlessly university concurrently inadvertently biodiversity irreversibly uncertainly conservancy discourtesy reversibly recurrently universally controversially unconcernedly undeservedly unreservedly counterinsurgency