pumpkinifiern.
Origin: Formed within English, by derivation. Etymons: pumpkin n., -ify suffix, -er suffix1.
Etymology: < pumpkin n. + -ify suffix + -er suffix1, after pumpkinification n. Compare later pumpkinify v.
1884 6 Dec. 721/1 The phrases whereby the pumpkinifier constructs his pumpkin.
This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).