contendo

accelero – accelerate, hasten, speed, to quicken
alo – cherish, keep, maintain, nourish, support, sustain
autumo – affirm, believe, to assert
certo – dispute, fight, settle, to contend, to settle by combat, to struggle
comparo – to compare
conservo – conserve, hold to, keep, maintain, to preserve
decerto – fight to the finish, to contend
dimico – struggle, to contend
firmo – affirm, encourage, maintain, make firm, secure, strengthen, to assert, to make lasting
fundo – cast, establish, melt, pour forth, pour out, to cast to the ground, to found, to pour

contendere – contend, contest
contente – eagerly, earnestly
contentio – contest, controversy, straining
contentus – content, contented, eager, satisfied, strained, stretched, zealous
condo – build, erect, establish, place, to store
concedo – allow, give up, grant, to concede, withdraw, yield
concido – cut down, cut up, destroy, fail, perish, sink, subside, to be ruined, to fall down
concordo – to harmonize, unite
confido – be confident of, believe, have confidence in, rely upon, to trust confidently
confundo – blend, confound, confounding, confuse, destroy, mix, to bring into disorder, to pour together, trouble

con·ten·do[1]