Noun
a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat

Verb
hinder or prevent (the efforts, plans, or desires) of; "What ultimately frustrated every challenger was Ruth''s amazing September surge"; "foil your opponent"

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a.
Situated or placed across something else; transverse; oblique.

a.
Fig.: Perverse; crossgrained.

a.
Thwartly; obliquely; transversely; athwart.

prep.
Across; athwart.

n.
A seat in an open boat reaching from one side to the other, or athwart the boat.

v. t.
To move across or counter to; to cross; as, an arrow thwarts the air.

v. t.
To cross, as a purpose; to oppose; to run counter to; to contravene; hence, to frustrate or defeat.

v. i.
To move or go in an oblique or crosswise manner.

v. i.
Hence, to be in opposition; to clash.

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Thwart

Thwart , a. [OE. wart, wert, a. and adv., Icel. vert, neut. of verr athwart, transverse, across; akin to AS. weorh perverse, transverse, cross, D. dwars, OHG. dwerah, twerh, G. zwerch, quer, Dan. & Sw. tver athwart, transverse, Sw. tv'84r cross, unfriendly, Goth. wa'a1rhs angry. Cf. Queer.] 1. Situated or placed across something else; transverse; oblique.

Moved contrary with thwart obliquities.

2. Fig.: Perverse; crossgrained. [Obs.] Shak.

Thwart

Thwart, adv. [See Thwart, a.] Thwartly; obliquely; transversely; athwart. [Obs.] Milton.

Thwart

Thwart, prep. Across; athwart. Spenser. Thwart ships. See Athwart ships, under Athwart.

Thwart

Thwart, n. (Naut.) A seat in an open boat reaching from one side to the other, or athwart the boat.

Thwart

Thwart, v. t. [imp. & p. p. Thwarted; p. pr. & vb. n. Thwarting.] 1. To move across or counter to; to cross; as, an arrow thwarts the air. [Obs.]

Swift as a shooting star In autumn thwarts the night.

2. To cross, as a purpose; to oppose; to run counter to; to contravene; hence, to frustrate or defeat.

If crooked fortune had not thwarted me.

The proposals of the one never thwarted the inclinations of the other.

Thwart

Thwart, v. i. 1. To move or go in an oblique or crosswise manner. [R.] 2. Hence, to be in opposition; to clash. [R.]

Any proposition . . . that shall at all thwart with internal oracles.

Situated or placed across something else; transverse; oblique.

Thwartly; obliquely; transversely; athwart.

Across; athwart.

A seat in an open boat reaching from one side to the other, or athwart the boat.

To move across or counter to; to cross; as, an arrow thwarts the air.

To move or go in an oblique or crosswise manner.