The Collaborative International Dictionary
Hadder
Hadder \Had"der\ (h[a^]d"d[~e]r), n.
Heather; heath. [Obs.]
--Burton.
Wiktionary
hadder
n. (context obsolete English) heather; heath
Usage examples of "hadder".
My pappy name Ben Thompson en he hadder stay dere close to de big house cause he wus de Colonel driver.
On the 18th also a detachment was reported from Hadders Spruit, seven miles north of Glencoe Camp.