aground vs at sea

aground

adv
  • Resting on the bottom. 

adj
  • at a loss, ruined, with no way out 

  • Resting on the bottom. 

at sea

prep
  • Used other than figuratively or idiomatically: see at, sea. 

  • In a state of confusion or bewilderment. 

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