Toad

google

ref

Old English tādde, tāda, abbreviation of tādige, of unknown origin.

wiktionary

ref

From Middle English tode, toode, tadde, tade, from Old English *tāde, a shortened variant of Old English tādie, tādiġe(“toad”). Compare Old English tāxe(“toad”).

Cognate with Scots tade, taid, taed, ted(“toad”). Compare also Danish tudse(“toad”), possibly originally from the same prehistoric root; also Swedish tåssa, tossa(“toad”), Old English tāxe(“toad”), Old English tosca(“toad”) by contrast.

etymonline

ref

toad (n.)

c. 1300, from late Old English tadige, tadie, of unknown origin and according to OED with no known cognates outside English. Applied to loathsome persons from 1560s. Toad-strangler "heavy rain" is from 1919, U.S. Southern dialectal.