auxiliary:

• it is assuredly that ...; can say with confidence that ... - Kansai dialect

expression / godan ~つ verb:

• to use one's own judgement; to not be swayed by others; to have confidence in oneself

noun:

• dependability; credibility; coefficient of confidence

expression / godan ~る verb:

• to take someone down a peg; to cut someone down to size; to dampen someone's confidence

expression:

• what will happen to everyone else if I am not the one who goes? (expression of confidence from someone going out into the world)

godan ~る verb / intransitive verb:

• to be lost (e.g. luggage); to be missing
• to be used up; to be run out; to be exhausted; to be consumed; to be reduced to zero; to not occur any more
• to disappear (e.g. pain); to be lost (e.g. a dream, confidence)

expression / godan ~る verb:

• to be lost (e.g. luggage); to be missing ➜ 無くなる【なくなる】
• to be used up; to be run out; to be exhausted; to be consumed ➜ 無くなる【なくなる】
• to disappear (e.g. pain); to be lost (e.g. a dream, confidence) ➜ 無くなる【なくなる】