Words that almost rhyme with expressum

expression session lesson oppression suppression lessen resin cession leaven freshen seven depression heaven impression possession profession aggression compression eleven procession repression obsession recession secession digression discretion succession accession concession confession progression regression concretion intercession decompression indiscretion dispossession transgression retrogression

plenum rectum venom harem denim vellum velum seldom welcome septum addendum bedlam spectrum cerebellum flagellum momentum referendum unwelcome antebellum antiserum interregnum