There are two more words in the Old Testament translated as "worship";
Strong's # H6087 atsab'
Verb that means to hurt, pain, grieve, displease, vex, wrest
(there is only one verse that it is translated as 'worship')
Jer 44:19 And when we burned incense to the queen of heaven, and poured out drink offerings unto her, did we make her cakes to worship her, and pour out drink offerings unto her, without our men?
Then in the book of Daniel there is Strong's # H5457 cegid' which is not a Hebrew word but Aramaic
Verb which means to prostrate oneself, do homeage
This word corresponds to the Hebrew word Strong's # H5456 cagad'
A verb used 4 times in the book of Isaiah tranlated as "fall down"