adjective
Origin: < L quinquagenarius < quinquageni, fifty each < quinquaginta, fifty < quinque, five + -ginta < IE *-omt- < base *dekṃ, ten
noun
See quinquagenarian in American Heritage Dictionary 4
noun
Origin:
Origin: From Latin quīnquāgēnārius, containing fifty
Origin: , from quīnquāgēnī, fifty each
Origin: , from quīnquāgintā, fifty; see penkwe in Indo-European roots
.