Strong's G4369 — προστίθημι (verb)
prostithemi (pros-tith'-ay-mee) v.
1. to place additionally, i.e. lay beside, annex, repeat
[from G4314 and G5087]
KJV: add, again, give more, increase, lay unto, proceed further, speak to any more 
Root(s): G4314, G5087 
Hebrew root: τίθημι
Occurrences: 18