Defn: A burden; an obligation. Onus probandi ( Etym: [L.], obligation to furnish evidence to prove a thing; the burden of proof.

ONWARD
On"ward, a.

1. Moving in a forward direction; tending toward a contemplated or desirable end; forward; as, an onward course, progress, etc.

2. Advanced in a forward direction or toward an end. Within a while, Philoxenus came to see how onward the fruits were of his friend's labor. Sir P. Sidney.

ONWARD
On"ward, adv.

Defn: Toward a point before or in front; forward; progressively; as,
to move onward.
Not one looks backward, onward still he goes. Pope.

ONWARDNESS
On"ward*ness, n.

Defn: Progress; advancement.

ONWARDS
On"wards, adv. Etym: [See -wards.]

Defn: Onward.