What does the word stem mean?

Usage examples for stem

  1. It is useful also to group together in memory words derived from the same stem, e. – Selections from Viri Romae by Charles François L'Homond
  2. What- At this moment a big wave struck the bow of the boat and swept her from stem to stern, filling Mason's open mouth with salt water. – A Voyage with Captain Dynamite by Charles Edward Rich