sugar daddy (n.)

• almoner
• almsgiver
• angel
• assignor
• backer
• beau
• bestower
• boyfriend
• cavalier
• conferrer
• consignor
• contributor
• donor
• esquire
• fellow
• flame
• gallant
• gigolo
• giver
• grantor
• inamorato
• man
• necker
• patron
• patroness
• petter
• philanderer
• philanthropist
• presenter
• seducer
• settler
• sheik
• squire
• subscriber
• supporter
• swain
• testate
• testator
• testatrix