(lou′ər) v.i.
1. To look angry or sullen; scowl.
2. To appear dark and threatening, as the weather.
—noun A scowl; a gloomy aspect. Also spelled lour. [Cf. G lauern lurk]

(lō′ər)
Comparative of LOW.
—adjective
1. Inferior in position, in value or rank; situated below something else: a lower berth.
2. Geol. Older; designating strata normally beneath the newer (and upper) rock formations.
—noun That which is beneath something above; specifically, a lower berth.
—v.t.
1. To bring to a lower position or level; let down, as a window.
2. To reduce in degree, quality, amount, etc.: to lower prices.
3. To bring down in estimation, rank, etc.; humble or degrade.
4. To change, as a sound, to a lower pitch or volume.
—v.i.
5. To become lower; sink; decrease. See synonyms under ABASE, ABATE, DISPARAGE, WEAKEN.