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Webster 1913 Edition
Weld
Weld
(wĕld)
, Verb.
 T.
 To wield. 
[Obs.] 
Chaucer.
 Weld
(wĕld)
, Noun.
 [OE. 
welde
; akin to Scot. wald
, Prov. G. waude
, G. wau
, Dan. & Sw. vau
, D. wouw
.] 1. 
(Bot.) 
An herb (
Reseda luteola
) related to mignonette, growing in Europe, and to some extent in America; dyer’s broom; dyer's rocket; dyer's weed; wild woad. It is used by dyers to give a yellow color. [Written also 
woald
, wold
, and would
.] 2. 
Coloring matter or dye extracted from this plant. 
 Weld
,Verb.
 T.
 [
imp. & p. p. 
Welded
; p. pr. & vb. n. 
Welding
.] [Probably originally the same word as 
well 
to spring up, to gush; perhaps from the Scand.; cf. Sw. välla 
to weld, uppvälla 
to boil up, to spring up, Dan. vælde 
to gush, G. wellen 
to weld. See Well 
to spring.] 1. 
To press or beat into intimate and permanent union, as two pieces of iron when heated almost to fusion. 
☞ Very few of the metals, besides iron and platinum. are capable of being welded. Horn and tortoise shell possess this useful property. 
2. 
Fig.: To unite closely or intimately. 
Two women faster 
 welded 
in one love. Tennyson.
Weld
,Noun.
 The state of being welded; the joint made by welding. 
Butt weld
. See under 
– Butt
. Scarf weld
, a joint made by overlapping, and welding together, the scarfed ends of two pieces.
 Webster 1828 Edition
Weld
WELD
, WOLD,Noun.