Meaning

noun Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin

verb color a moderate to strong red

adjective roused to anger; - Mark Twain

originFrom Middle English mader, madere, mædere, from Old English mædere, mæddre, mædre, from Proto-Germanic *madarǭ (compare Swedish måra, Old Norse / Icelandic maðra), from Proto-Indo-European *modʰro-, cognate with Proto-Slavic *modrъ (“blue”), and compare Irish madar (“madder”), Latvian madara (“madder”).

Etymology from Wiktionary, CC BY-SA 3.0