ban vs qualify

ban

verb
  • To prohibit; to interdict; to proscribe; to forbid or block from participation. 

  • To curse; to utter curses or maledictions. 

  • To curse; to execrate. 

  • To anathematize; to pronounce an ecclesiastical curse upon; to place under a ban. 

noun
  • A subdivision of currency, equal to one hundredth of a Moldovan leu. 

  • A unit measuring information or entropy based on base-ten logarithms, rather than the base-two logarithms that define the bit. 

  • A subdivision of currency, equal to one hundredth of a Romanian leu. 

  • The gathering of the (French) king's vassals for war; the whole body of vassals so assembled, or liable to be summoned; originally, the same as arrière-ban: in the 16th c., French usage created a distinction between ban and arrière-ban, for which see the latter word. 

  • Prohibition. 

  • A public proclamation or edict; a summons by public proclamation. Chiefly, in early use, a summons to arms. 

  • A title used in several states in central and south-eastern Europe between the 7th century and the 20th century. 

  • A pecuniary mulct or penalty laid upon a delinquent for offending against a ban, such as a mulct paid to a bishop by one guilty of sacrilege or other crimes. 

qualify

verb
  • To modify, limit, restrict or moderate something; especially to add conditions or requirements for an assertion to be true. 

  • To certify or license someone for something. 

  • To throw and catch each object at least twice. 

  • To compete successfully in some stage of a competition and become eligible for the next stage. 

  • To make someone, or to become competent or eligible for some position or task. 

  • To give individual quality to; to modulate; to vary; to regulate. 

  • To describe or characterize something by listing its qualities. 

noun
  • An instance of throwing and catching each prop at least twice. 

How often have the words ban and qualify occurred in a corpus of books? (source: Google Ngram Viewer )