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
keleuo (Greek #2753)
"hail"; to incite by word, i.e. order
KJV usage: bid, (at, give) command(-ment).
Pronounce: kel-yoo'-o
Origin: from a primary κέλλω (to urge on)