cleave, join (self), keep company

Strong’s Dictionary of Greek Words:

Greek:
κολλάω
Transliteration:
kollao
Phonic:
kol-lah’-o
Meaning:
from κόλλα ("glue"); to glue, i.e. (passively or reflexively) to stick (figuratively)
KJV Usage:
cleave, join (self), keep company