oxygenize
transitive verb
ox·y·gen·ize
variants:
also British oxygenise \ ˈäk-si-jə-ˌnīz 
, äk-ˈsij-ə-
\
, äk-ˈsij-ə-
\
oxygenized
also British oxygenised;
oxygenizing
also British oxygenising