The Collaborative International Dictionary
Succumbing
Succumb \Suc*cumb"\, v. t. [imp. & p. p. Succumbed; p. pr. & vb. n. Succumbing.] [L. succumbere; sub under + cumbere (in comp.), akin to cubare to lie down. See Incumbent, Cubit.] To yield; to submit; to give up unresistingly; as, to succumb under calamities; to succumb to disease.
Wiktionary
succumbing
vb. (present participle of succumb English)