If you want a comprehensive list, you can find one in any dictionary quite easily (if you understand alphabetical order). If you would just like to read a few such words, no problem. Inconceivable, inconvenient, inevitable.
duet
equilateral, equilibrium, equinox, equivalence
See the related link for a list with OVER 1,500 words starting with the prefix IN.
Yes, spec is a prefix. See the related question for a list of words beginning with this prefix.
Some examples of words with the prefix "sys" include: system, systematic, synergy, and symbiosis.
Pentagon, pentagram, pentathlon, pentoxide.
Bio- means life......and some words areBiologyBiographyBio hazard
PostcardPostofficepostponepostplanposthumouspostmarkpostagepostscriptpostdate
periphery periscope perimeter
complete,complain,computer,
Mircro is the prefix for small. Some words are microscope, microfilm, microvolt, mircrometer, microcard, etc.
bibliography, bibliophile, bibliopole. YAY!!