v. [ad. L. add-ĕre; f. ad to + dăre to give, put.]
1. To join or unite (a thing to another) so as to increase the number, quantity or importance.
c. 1374. Chaucer, Boethius, III. ix. (1868), 83. Lat vs quod she þan adden reuerence to suffisaunce and to power Certis, quod I, lat vs adden it.
1388. Wyclif, Hosea xiii. 2. Thei addiden to do synne, and maden to hem a ȝotun ymage [1382 Puttiden to. Vulg. Addiderunt ad peccandum].
1570. Billingsley, Euclid, I. ii. 7. If ye adde equall thinges to equall thinges: the whole shalbe equall.
1593. Shaks., 3 Hen. VI., V. iv. 70. I need not adde more fuell to your fire.
1611. Bible, Matt. vi. 27. Which of you by taking thought, can adde one cubite vnto his stature?
1756. Burke, Nat. Soc., Wks. I. 29. Add to the account those skirmishes which happen in all wars.
1827. Hutton, Mathem., I. 8. 5 + 3 denotes that 3 is to be added to 5.
1859. Tennyson, Guinevere, 203. Yet this grief is added to the griefs the great must bear.
† b. To give by way of increased possession or share (to a person). Obs.
1534. Tindale, Rev. xxii. 18. God shall adde vnto him the plages that are wrytten in this boke.
1611. Bible, Matt. vi. 33. All these things shalbe added vnto you. [Wycl. cast, Tind., Cranm., Genev. ministred, Rheims given you besides.]
1640. Fuller, Abel Rediv. (1867), I. 18. Posterity may know who added the part of helpful Onesiphorus to this Paul in bonds.
1709. Strype, Ann. Ref., liii. 532. Who seemed by the special will of God to be added to the Queen in those most difficult times.
† To add faith to: to give credence to, to believe. Cf. L. addere fidem, Fr. ajouter foi. Obs.
1483. Caxton, Cato, f iiij b. Thow oughtest not euer byleue that that men sayen and reporten to the, ne to adde feythe to hit.
2. (With object unexpressed) To make an addition to; to increase, augment, enlarge.
1591. Shaks., 1 Hen. VI., I. i. 103. My gracious Lords, to adde to your laments I must informe you of a dismall fight.
1697. Dryden, Virgil, Georgic, I. 420. When Autumn weighs The Year, and adds to Nights, and shortens Days.
Mod. It adds greatly to our labour, but also to our pleasure.
3. To say or write further, or in addition; to go on to say or speak.
1382. Wyclif, Gen. xv. 3. And Abram addide, To me forsothe thow hast not ȝouun seed. Ibid. (1388), Luke xix. 11. He addide, and seide a parable [Another MS. He addide to. 1382 He puttinge to, seide a parable].
1600. Abp. Abbot, Jonah, ix. 179. They farther adde, that the Elephant is but little, when he is compared with these water-monsters.
1611. Shaks., Cymb., V. v. 19. Further to boast, were neyther true, nor modest, Vnlesse I adde, we are honest.
1671. Milton, P. R., I. 497. He added not; and Satan bowing low His gray dissimulation, disappeared.
1735. Pope, Epil. Sat., ii. 133. But let me add, Sir Roberts mighty dull.
1879. Bartlett, Egypt to Palest., x. 224. It may be added, in this connection, that the iron occurs elsewhere in the Peninsula.
4. To unite (two or more things or numbers) into one sum; often with together. absol. To perform the arithmetical process of addition. To add up, to find the sum of a column or series of numbers, to cast; to add in, to include in a sum.
1509. Hawes, Past. of Pl., XV. v. Who knewe arsmetryke in every degre Bothe to detraye and to devyde and adde.
1579. Digges, Stratioticos, 2. To adde is to gather and knit in one many numbers or unites.
1690. Locke, Hum. Underst., I. xvii. § 20. 108. As easie as he can add together the Ideas of two Days, or two Paces.
1796. Hutton, Math. Dict., 29/2. Add each column separately, and carry the overplus as before, from one column to another.
1872. Hamb. Smith, Algebra, 2. When several numbers are added together, it is indifferent in what order the numbers are taken.
1879. Colenso, Arithm., 2. We then add these figures thus, 5 and 7 are 12.