τηΰσιος

Etymology
An isolated poetic adjective. If it originally meant "deceptive", from, cognate with 🇨🇬, 🇨🇬, 🇨🇬, , 🇨🇬, etc. The suffix -σῐος may have been added directly to an unattested noun after the pattern of  from. Compare also.

Adjective

 * 1)  idle, vain, undertaken to no purpose