attitude, condition, figure, appearance, voice (of verbs)
態 centers on the outward expression of an inner state: the attitude, appearance, or condition something presents. The grammatical sense 'voice' is a specialized application of this idea of form or manner.
態 combines 能 (ability, form) with 心 (heart, mind), suggesting the form or appearance that arises from one's inner state. The exact historical development is uncertain, but the component relationship is well established.
The top 能 shows a form or ability, and the bottom 心 is the heart. Together they picture the heart's form: the attitude or appearance that shows on the outside.
For タイ, imagine a person's attitude tied to their heart: tie -> タイ, and the heart 心 below 能 shows the true attitude.
state; condition; situation; appearance; circumstances
situation; (present) state of affairs; circumstances
transformation
attitude; manner; behaviour; demeanour; bearing
form; shape; figure
true state; actual condition; reality
ecology; life and habits (of an animal)
attitude; posture; preparedness; readiness
blunder; fault; error; mistake; failure; disgrace
business conditions
condition; figure; appearance
mimicry; mimesis; camouflage
movement; dynamic state
state of a disease; condition of a patient
normal state (condition)
abusive language
disgraceful behavior; disgraceful behaviour; shameful conduct; shameful sight
condition; state (of health); appearance
old state of affairs
form; situation; condition