Source : Webster's Revised Unabridged Dictionary (1913)

Late \Late\, a. [Compar. {Later}, or {latter}; superl.
   {Latest}.] [OE. lat slow, slack, AS. l[ae]t; akin to OS. lat,
   D. laat late, G. lass weary, lazy, slack, Icel. latr, Sw.
   lat, Dan. lad, Goth. lats, and to E. let, v. See {Let} to
   permit, and cf. {Alas}, {Lassitude}.]
   1. Coming after the time when due, or after the usual or
      proper time; not early; slow; tardy; long delayed; as, a
      late spring.

   2. Far advanced toward the end or close; as, a late hour of
      the day; a late period of life.

   3. Existing or holding some position not long ago, but not
      now; lately deceased, departed, or gone out of office; as,
      the late bishop of London; the late administration.

   4. Not long past; happening not long ago; recent; as, the
      late rains; we have received late intelligence.

   5. Continuing or doing until an advanced hour of the night;
      as, late revels; a late watcher.

Later \La"ter\, n.; pl. {Lateres}. [L.]
   A brick or tile. --Knight.

Later \Lat"er\, a.
   Compar. of {Late}, a. & adv.

Source : WordNet®

later
     adj 1: coming at a subsequent time or stage; "the future president
            entered college at the age of 16"; "awaiting future
            actions on the bill"; "later developments"; "without
            ulterior argument" [syn: {future(a)}, {later(a)}, {ulterior}]
     2: at or toward an end or late period or stage of development;
        "the late phase of feudalism"; "a later symptom of the
        disease"; "later medical science could have saved the
        child" [syn: {late}, {later(a)}] [ant: {early}]

later
     adv 1: happening at a time subsequent to a reference time; "he
            apologized subsequently"; "he's going to the store but
            he'll be back here later"; "it didn't happen until
            afterward"; "two hours after that" [syn: {subsequently},
             {afterwards}, {afterward}, {after}, {later on}]
     2: at some eventual time in the future; "By and by he'll
        understand"; "I'll see you later" [syn: {by and by}]
     3: comparative of the adverb `late'; "he stayed later than you
        did"