汚染源[osengen] source of pollution
音源[ongen] sound source
禍源[kagen] source of misfortune
供給源[kyoukyuugen] source of supply
経営資源[keieishigen] management resource

源氏物語[genjimonogatari] the Tale of the Genji
源泉[gensen] source
源流[genryuu] current-limiting
語源[gogen] word root

恩給[onkyuu] pension
加給[kakyuu] raising salaries
給う[tamau] to receive
給血[kyuuketsu] donation of blood
給仕[kyuuji] waiting on a table

給食[kyuushoku] school lunch
給水[kyuusui] water supply
給水制限[kyuusuiseigen] water supply restrictions
給水栓[kyuusuisen] hydrant