Etymology
Advertisement

intercalation (n.)

1570s, from Latin intercalationem (nominative intercalatio) "insertion of an intercalary day," noun of action from past participle stem of intercalare "proclaim an intercalary day" (see intercalate). The general sense "insertion of any addition into an existing series" is from 1640s.

updated on December 13, 2015

Advertisement
Advertisement
Definitions of intercalation from WordNet

intercalation (n.)
an insertion into a calendar;
Synonyms: embolism
From wordnet.princeton.edu, not affiliated with etymonline.