SUBTRACT
subtract
(verb) take off or away; “this prefix was subtracted when the word was borrowed from French”
subtract, deduct, take off
(verb) make a subtraction; “subtract this amount from my paycheck”
Source: WordNet® 3.1
Etymology
Verb
subtract (third-person singular simple present subtracts, present participle subtracting, simple past and past participle subtracted)
(transitive, arithmetic) To remove or reduce; especially to reduce a quantity or number
Synonyms
• unadd
Antonyms
• add
Source: Wiktionary
Sub*tract", v. t. [imp. & p. p. Subtracted; p. pr. & vb. n.
Subtracting.] Etym: [L. subtractus, p.p. of subtrahere to draw from
beneath, withdraw, remove; sub under + trahere to draw. See Trace, v.
t., and cf. Substract.]
Definition: To withdraw, or take away, as a part from the whole; to deduct;
as, subtract 5 from 9, and the remainder is 4.
Source: Webster’s Unabridged Dictionary 1913 Edition