adder

1
[ ad-er ]
/ ˈæd ər /

noun

the common European viper, Vipera berus.
any of various other venomous or harmless snakes resembling the viper.

RELATED WORDS


Nearby words

  1. added title page,
  2. added-value tax,
  3. addend,
  4. addenda,
  5. addendum,
  6. adder's-meat,
  7. adder's-mouth,
  8. adder's-tongue,
  9. adderall,
  10. adderley

Origin of adder

1
before 950; late Middle English; replacing Middle English nadder (a nadder becoming an adder by misdivision; cf. apron), Old English næddre; cognate with Old Saxon nādra, Old High German nātara (German Natter), Old Norse nathra snake, Gothic nadrs adder, Old Irish nathir snake, Latin natrix water snake

adder

2
[ ad-er ]
/ ˈæd ər /

noun

a person or thing that adds.

Origin of adder

2
First recorded in 1570–80; add + -er1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for adder


British Dictionary definitions for adder

adder

1
/ (ˈædə) /

noun

Also called: viper a common viper, Vipera berus, that is widely distributed in Europe, including Britain, and Asia and is typically dark greyish in colour with a black zigzag pattern along the back
any of various similar venomous or nonvenomous snakes

Word Origin for adder

Old English nǣdre snake; in Middle English a naddre was mistaken for an addre; related to Old Norse nathr, Gothic nadrs

noun

a person or thing that adds, esp a single element of an electronic computer, the function of which is to add a single digit of each of two inputs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for adder

adder

n.

Old English næddre "a snake, serpent, viper," from West Germanic *nædro "a snake" (cf. Old Norse naðra, Middle Dutch nadre, Old High German natra, German Natter, Gothic nadrs), from PIE root *netr- (cf. Latin natrix "water snake," probably by folk-association with nare "to swim;" Old Irish nathir, Welsh neidr "adder").

The modern form represents a faulty separation 14c.-16c. into an adder, for which see also apron, auger, nickname, humble pie, umpire. Nedder is still a northern English dialect form. Folklore connection with deafness is via Psalm lviii:1-5. The adder is said to stop up its ears to avoid hearing the snake charmer called in to drive it away. Adderbolt (late 15c.) was a former name for "dragonfly."

Online Etymology Dictionary, © 2010 Douglas Harper