All 6 Uses

thwart
in
The Odyssey
(Auto-generated)

But no, the gods thwart his passage.†
p. 83.9 *
But there is no way, you know, for another god to thwart
the will of storming Zeus and make it come to nothing.†
p. 155.8
And I welcomed him warmly, cherished him, even vowed
to make the man immortal, ageless, all his days ...
But since there is no way for another god to thwart
the will of storming Zeus and make it come to nothing,
let the man go—if the Almighty insists, commands—
and destroy himself on the barren salt sea!†
p. 156.8
Let all hands lash their oars to the thwarts then disembark,
come to my house and fall in for a banquet, quickly.†
p. 192.8
You men at the thwarts—
lay on with your oars and strike the heaving swells,
trusting that Zeus will pull us through these straits alive.†
p. 278.1
Of all the lords in Ithaca's rocky heights
or the islands facing Elis grazed by horses,
not a single one will force or thwart my will,
even if I decide to give our guest this bow—
a gift outright—to carry off himself.†
p. 435.5

Definitions:

(1) (thwart as in: thwarted her plans)
to prevent someone from doing what they want to do; or (less commonly) to oppose someone's efforts
(2) (meaning too rare to warrant focus)
a seat of a rowboat