601;
stumble on light upon; take one’s chance &c. 621. 
     Adj. casual, fortuitous, accidental, adventitious, causeless,
incidental, contingent, uncaused, undetermined, indeterminate; random, statistical; possible &c. 470; unintentional &c. 621. 
     Adv. by chance, accidentally, by accident; casually; perchance &c.
(possibly) 470; for aught one knows; as good would have it, as bad would have it, as luck would have it, as ill-luck would have it, as chance would have it; as it may be, as it may chance, as it may turn up, as it may happen; as the case may be. 
     Phr. “grasps the skirts of happy chance” [Tennyson]; “the accident
of an accident” [Lord Thurlow].  “There but for the grace of God go I.”

<—­ p. 46 —­> % 2.  Connection between cause and effect % <—­ “power” contains the concepts of both efficacy and efficiency —­>

     #157.  Power.—­ N. power; potency, potentiality; jiva[obs3]; puissance,
might, force, energy &c. 171; dint; right hand, right arm; ascendency[obs3], sway, control; prepotency, prepollence|; almightiness, omnipotence; authority &c. 737; strength &c. 159.
     ability; ableness &c. adj[obs3].; competency; efficacy; efficiency,
productivity, expertise (skill) 698; validity, cogency; enablement[obs3]; vantage ground; influence &c. 175.
     pressure; conductivity; elasticity; gravity, electricity, magnetism,
galvanism, voltaic electricity, voltaism, electromagnetism; atomic power, nuclear power, thermonuclear power; fuel cell; hydraulic power, water power, hydroelectric power; solar power, solar energy, solar panels; tidal power; wind power; attraction; vis inertiae[Lat], vis mortua[Lat], vis viva [Latin]; potential energy, dynamic energy; dynamic friction, dynamic suction; live circuit, live rail, live wire.
     capability, capacity; quid valeant humeri quid ferre recusent
[obs3][Latin]; faculty, quality, attribute, endowment, virtue, gift, property, qualification, susceptibility. 
     V. be powerful &c. adj.; gain power &c. n.
     belong to, pertain to; lie in one’s power, be in one’s power; can, be
able.
     give power, confer power, exercise power &c. n.; empower, enable,
invest; indue[obs3], endue; endow, arm; strengthen &c. 159; compel &c. 744. 
     Adj. powerful, puissant; potential; capable, able; equal to, up to;
cogent, valid; efficient, productive; effective, effectual, efficacious, adequate, competent; multipotent[obs3], plenipotent[obs3], omnipotent; almighty.
     forcible &c. adj. (energetic) 171; influential &c. 175; productive &c.
168. 
     Adv. powerfully &c. adj.; by virtue of, by dint of. 
     Phr. a toute force[Fr]; gr/dos moi pou sto kai kino ten
gen/gr[Sp][Grk][Grk][Grk][Grk][Grk]; eripuit coelo fulmen sceptrumque tyrannis [Latin]; fortis cadere cedere non potest [Latin].