umbershootn.

/ˈʌmbəʃuːt/Etymology: Perhaps fanciful formation < umbrella n. and shoot n.1 Compare umber n.1
1922 J. Joyce ii. ix. [Scylla & Charybdis] 184 Crosslegged under an umbrel umbershoot he thrones an Aztec logos.
This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2019).