ADD, ADDED, ADDING, ADDITION
ADJECTIVES
1420 — ADMIXT added as an ingredient; mingled with
1538 — ADJECTED added on, annexed, appended to
1659 — ADDITORY tending to add something → obs.
1677 — ADNATE added to something naturally existing → obs.
1716 — UNADDITIONABLE not worth adding or counting in → obs.
1748 — ADDITITIOUS characterized by having been added; due to or of the nature of an addition; additive
1881 — SUMMATIVE operating by means of addition; additive
NOUNS
..894 — EKE an addition, increase; a piece added on; a supplement → obs. exc. Eng. dial.
1374 — ADJECTION addition; the act of adding, adding on, annexing or appending
1382 — ECHING an addition; the act of increasing, enlarging, supplementing
1400 — ADVENTION a non-essential addition → obs.
1432 — ADMIXTION the addition of an ingredient; the mingling of one thing with another
1460 — ADDITAMENT an addition; anything added or appended
1556 — ADJECTION an addition; the result of adding on; that which is added → obs.
1597 — ADJOINT an addition → obs.
..17C — ANNEXION an addition → obs.
1604 — ADJOINDER an addition or appendix; something joined to → obs.
1604 — ANNUMERATION a counting something; addition to a former number
1605 — ADMIXTURE an adding as an ingredient
1630 — ADJECTAMENT an addition; anything thrown in by way of addition → obs.
1639 — ADJECTING adding → obs.
1652 — ADDIMENT an addition, something that is added; an additive
1660 — ADMISTION addition as an ingredient → obs.
1672 — ADJECT an addition; added qualification → obs.
1898 — ADDLE an adding or addition → Eng. dial. (Bk.)
1898 — BETTER PENNY something in addition → Eng. dial. (Bk.)
VERBS
1000 — ECHE to add something to → obs.
1200 — EKE to add → obs.
1340 — TO-CAST to add, to make addition → obs.
1432 — ADJECT to add or join, to annex
1474 — ADJOUST to add; to put one thing to another → obs.
1475 — ANNUMERATE to count, to reckon something; to add, as to a number previously given → obs.
1500 — ANNUMBER to count in, add on, to reckon as an addition to obs.
1524 — ADJUTE to add → obs.
1533 — ADMIX to add as an ingredient
1570 — ADMIXT to add as an ingredient → obs.
1657 — ADAUGE to add to, to augment, to increase by addition → obs.
1905 — CLAP ON to add hastily → Sc. (Bk.)
1905 — OCKER to add to, to increase → Sc. (Bk.)
Lexicophilia 