to doubt, to suspect, to mistrust

to be suspicious (of), be mistrustful (of), to be disaffected

to make a horse gallop

idea, thought, conjecture, surmise, presumption, fancy

think, reason, consider

vainly hopeful, presumptuous

cause to run

On a mere suspicion.

look all around, scan

doubt, suspicion, distrust

thought, idea, imagine, hypothetical, fictitious

keep up active or brisk correspondence, send letters or petitions, etc.

to indulge into something

indulge in speculation, imagine, let thoughts roam

show pride or conceit, be arrogant

the supposition, it is supposed, it is expected, it is probable or likely

consider, think freely, let mind roam

to come into one's mind

make (a horse) gallop