- intercalate (v.)
[intercalate 词源字典]
- "to insert a day into the calendar," 1610s, from Latin intercalatus, past participle of intercalare "to proclaim the insertion of an intercalary day," from inter- "between" (see inter-) + calare (see calendar). Related: Intercalated; intercalating.[intercalate etymology, intercalate origin, 英语词源]