logarithm
A Word with Greek Root, Prefix or Suffix
logarithm
the exponent (E) expressing the power to which a fixed number (the base, B) must be raised in order to produce a given number (N); E = logB(N)
对数
Dissection of logarithm
logarithm = log (idea, word, speech, discussion, reason, study, here log means reason, proportion, ratio) + arithm (number)
logarithm = ratio number
Important roots for this word:
log
arithm
Note: You may sometimes find that a vowel such as o is often inserted between two roots, as o inserted between phon and graph in phonograph = phon + o + graph, the reason is for easy pronounciation. Another example is archaeology = archae + o + logy