det

• (of days of the week or months of the year) Closest in the past, or closest but one if the closest was very recent; of days, sometimes thought to specifically refer to the instance closest to seven days (one week) ago, or the most recent instance before seven days (one week) ago.
  "It's Wednesday, and the party was last Tuesday; that is, not yesterday, but eight days ago."

adv

• (sequence) after everything else; finally
  "As I arrived last of all, I'll go last to add the butter last."

verb

• (intransitive) To endure, continue over time.
  "Summer seems to last longer each year."
• (intransitive) To hold out, continue undefeated or entire.
  "I don't know how much longer we can last without reinforcements."
• (intransitive, slang, of a man) To purposefully refrain from orgasm
• (transitive, obsolete) To perform, carry out.

noun

• (obsolete) A burden; load; a cargo; freight.
• (obsolete) A measure of weight or quantity, varying in designation depending on the goods concerned.
  "Now we so quietly followed our businesse, that in three moneths wee made three or foure Last of Tarre, Pitch, and Sope ashes [...]."
• (obsolete) An old English (and Dutch) measure of the carrying capacity of a ship, equal to two tons.
  "1942 (1601), T D Mutch, The First Discovery of Australia, page 14, The tonnage of the Duyfken of Harmensz's fleet is given as 25 and 30 lasten."