lasting vs spasmodic

lasting

adj
  • Persisting for an extended period of time. 

noun
  • A durable woollen material formerly used for women's shoes. 

  • The act or process of shaping footwear on a last. 

spasmodic

adj
  • Intermittent or fitful; occurring in abrupt bursts. 

  • Convulsive; consisting of spasms. 

  • Of or relating to a spasm; resembling a sudden contraction of the muscles. 

  • Erratic or unsustained. 

  • Of or relating to the spasmodic poets, a group of British Victorian poets who wrote introspective drama in verse. 

noun
  • A medicine for suppressing spasms. 

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