groundsel 1
/grownd"seuhl/ , n.
any composite plant of the genus Senecio, esp. S. vulgaris, a common weed having clusters of small yellow disk flowers without rays.
[ bef. 900; ME grundeswili ( e ), groundeswel, OE grundeswelge, gundeswelge; cf. OE gund pus, swelgan to swallow, absorb (from its use in medicine); the -r- is by folk etymology from assoc. with GROUND 1 ]
groundsel 2
/grownd"seuhl/ , n.
groundsill.