Webster's Revised Unabridged Dictionary · 1913

Gerund

Gerund , noun

[Latin gerundium, from gerere to bear, carry, perform. See Gest a deed, Jest.]

1.
A kind of verbal noun, having only the four oblique cases of the singular number, and governing cases like a participle.
2.
In Modern English, the -ing form of a verb, when functioning as a noun; as, running is good for the heart.
3.
(Anglo-Saxon Grammar) A verbal noun ending in -e, preceded by to and usually denoting purpose or end; -- called also the dative infinitive; as, “Ic habbe mete tô etanne” (I have meat to eat.).