Webster’s Revised Unabridged Dictionary · 1913
Engregge
En·greg′ge (ĕn·grĕg′ge), v. t. [OF. engregier, from (assumed) LL. ingreviare; in + (assumed) grevis heavy, for L. gravis. Cf. Aggravate.] To aggravate; to make worse; to lie heavy on. [Obs.] Chaucer.