co
lat
vert
pyro
100

to work together toward the same goal



cooperate 

100

the distance north or south of the equator

latitude 

100

the highest point of something; in geometry, the point at which two sides intersect



vertex 

100

a pile of flammable materials, usually intended for burning



pyre

200

of the same order, rank, significance, or characteristic



coordinating 

200

having or related to one side (can be literal or figurative)



unilateral 

200

to change into a different property or state; to adopt a new opinion, belief, or religion



convert 

200

produced or created by fire or heat



pyrogenic 

300

having a common boundary; meeting at the ends



coterminal 

300

something offered as security for repayment of a loan

collateral 

300

to draw off course; to turn aside from a set path



divert 

300

a condition characterized by obsession with fire



pyromania