Add

Latin addere, from ad + dare ("to give, put"). Compare date, do.

Full definition of add

(transitive) To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate. Hence: To sum up; to put together mentally.

unknown date John Locke...as easily as he can add together the ideas of two days or two years.

to add numbers
(transitive) To combine elements of (something) into one quantity.
to add a column of numbers
(transitive) To give by way of increased possession (to any one); to bestow (on).

1611, King James Version, Genesis 30:24:The LORD shall add to me another son.
1667, John Milton, Paradise Lost:Back to thy punishment, False fugitive, and to thy speed add wings.

1855, Thomas Babington Macaulay, The History of England from the Accession of James the Second, volume 3, page 37 http://books.google.com/books?id=w_M9AAAAcAAJ&pg=PA37&dq=added:He added that he would willingly consent to the entire abolition of the tax
1900, L. Frank Baum, The Wonderful Wizard of Oz Chapter 23"Bless your dear heart," she said, "I am sure I can tell you of a way to get back to Kansas." Then she added, "But, if I do, you must give me the Golden Cap."

1611, King James Version, 1 Kings 12:14:I will add to your yoke
2013-06-29, A punch in the gut, Mostly, the microbiome is beneficial....Research over the past few years, however, has implicated it in diseases from atherosclerosis to asthma to autism. Dr Yoshimoto and his colleagues would like to add liver cancer to that list.

It adds to our anxiety.
(intransitive, mathematics) To perform the arithmetical operation of addition.
He adds rapidly.

We add by bringing things together so as to form a whole.

We join by putting one thing to another in close or continuous connection.

We annex by attaching some adjunct to a larger body.

We unite by bringing things together so that their parts adhere or intermingle.

Things coalesce by coming together or mingling so as to form one organization.

To add quantities; to join houses; to annex territory; to unite kingdoms; to make parties coalesce

(plural adds)

(video games) An additional enemy that joined the fight after the primary target.After engaging the boss for one minute, two adds will arrive from the back and must be dealt with.
(computer science) An act or instance of adding.