the worm also creates new addresses by guessing common user names and prepending them to domain names of found email addresses [e.a.]

I understand what the writer is hanging onto with this uglification, but since the space this word occupies is already taken I intend to remove his preppendix with a rusty spoon

prepend

rare.

trans. To weigh mentally, ponder, consider; to premeditate. (But app. often used by confusion for perpend.)

a1568 Wedderburn in Bannatyne Poems (Hunter. Cl.) 839 And als ye sowld prepend bayth day and houris, To grit mischeif, misery and neid, Fra paramouris dois evir mair succeid. 1621 Bolton Stat. Irel. 128 (Act 28 Hen. VIII), The kings majestie+prepending and waying+how much it doth more conferre to the induction of rude and ignorant people to the knowledge of Almightie God. 1890 Scots Observer 4 Jan. 179 There are still amongst us people who prepend the Sphinx-torpedo question.

Hence pre"pended ppl. a., premeditated; = prepense a. (nonce-use.)

1831 Lamb Elia Ser. ii. Newspapers 35 Years Ago, To get up, moreover, to make jokes with malice prepended.


OED2