Encara no tenim significats per a "appear whilst".
1Day began to appear whilst he was thinking upon these things; he arose and went to his council chamber, and sat upon his throne.
2Montanism appeared whilst Gnosticism was yet in its full strength, and this gloomy fanaticism created intense agitation.
3The next day Billy appeared whilst Aaron, off duty, was strolling up and down outside the pilot-house, and strolled offensively in his wake.