INTERCALATE

intercalate

(verb) insert (days) in a calendar

Source: WordNet® 3.1

Etymology

Verb

intercalate (third-person singular simple present intercalates, present participle intercalating, simple past and past participle intercalated)

To insert an extra leap day into a calendar in order to maintain synchrony with natural phenomena.

To insert an extra month into a calendar for the same purpose. The Hebrew calendar has such a month.

(molecular biology) To insert a substance between two or more molecules, bases, cells, or tissues.

To insert anything somewhere (especially between other things), such as an affix into a word. (Compare interpolate.)

Source: Wiktionary

In*ter"ca*late, v. t. [imp. & p. p. Intercalated; p. pr. & vb. n. Intercalating.] Etym: [L. intercalatus, p. p. of intercalare to intercalate to intercalate; inter between + calare to call, proclaim. See Calendar.]

1. (Chron.)

Definition: To insert, as a day or other portion of time, in a calendar.

2. To insert among others, as a verse in a stanza; specif. (Geol.), to introduce as a bed or stratum, between the layers of a regular series of rocks. Beds of fresh-water shells . . . are intercalated and interstratified with the shale. Mantell.

Source: Webster’s Unabridged Dictionary 1913 Edition