Compounds of 久

• 永久凍土
  (n) permafrost
• 永久不変
  (n,adj-na,adj-no) permanence
  forever unchanging
• 永久変数
  (n) (comp) permanent variable
• 幾久しく
  (adv) forever
• 久しい昔
  (n) a long time ago
• 久しぶり
  (adj-na,adj-no) a long time (since the last time)
  it's been a while (since I last saw, mailed, etc., you)
  (P)
• 久し振り
  (adj-na,adj-no) a long time (since the last time)
  it's been a while (since I last saw, mailed, etc., you)
  (P)
• 久方振り
  (adj-na,n) long time
  many days
• 堅忍持久
  (n) dogged perseverance
  untiring patience
• 恒久施設
  (n) permanent establishment (in tax law)
• 恒久不変
  (n) permanent and immutable
• 承久の変
  (n) Jokyu uprising
• 耐久商品
  (n) durable (consumer) goods
• 天地長久
  (exp) Heaven and earth are eternal
• 天長地久
  (n) coeval with heaven and earth
• 年久しく
  (adv) for many years
  anciently
• 半永久的
  (adj-na) semipermanent
• 武運長久
  (exp) continued luck in the fortunes of war
• お久しぶり
  (exp) (abbr) (sl) it's been a long time
  long time no see
• 永久革命論
  (n) permanent revolution
• 久しぶりに
  (adv) after a long time
• 久し振りに
  (adv) after a long time
• 久濶を叙す
  (exp) to apologize for a long neglect of friends (apologise)
• 恒久的施設
  (n) permanent establishment (in tax law)
• 耐久消費財
  (n) durable (consumer) goods
• 永久記憶装置
  (n) (comp) permanent storage
• 永久磁石発電機
  (n) permanent magnet generator
• 永久選挙人名簿
  (n) permanent voter registration list
• 奢る平家久しからず
  (exp) pride goes before a fall
  lit: the proud Heike family lasts not long
• 驕る平家久しからず
  (exp) pride goes before a fall
  lit: the proud Heike family lasts not long