te (Greek #5037)
both or also (properly, as correlation of 2532)
KJV usage: also, and, both, even, then, whether. Often used in composition, usually as the latter participle.
Pronounce: teh
Origin: a primary particle (enclitic) of connection or addition
kai (Greek #2532)
and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
KJV usage: and, also, both, but, even, for, if, or, so, that, then, therefore, when, yet.
Pronounce: kahee
Origin: apparently, a primary particle, having a copulative and sometimes also a cumulative force