(intransitive) To use a treadle.

In a treacherous manner.

To apply treacle to a surface, so as to catch flies or moths, etc.

(chiefly Britain) A syrupy byproduct of sugar refining; molasses or golden syrup. / Cloying sentimental speech. / (Cockney rhyming slang) Sweetheart (from treacle tart).

Deliberate, often calculated, disregard for trust or faith. / The act of violating the confidence of another, usually for personal gain. / Treason. / (countable) An act or instance of treachery.

Exhibiting treachery. / Deceitful; inclined to betray. / Unreliable; dangerous.

To proceed carefully; especially, to seek to avoid causing offense.

To remain afloat in the water without use of any buoyancy aid, by using kicking motions and hand motions. / (figuratively) To make no progress, expending effort just enough to maintain a stable position.

present participle of tread

The act of one who treads.