documentary
UK:
/dˌɒkjuːmˈɛntəɹi/
US:
/ˌdɑkjəˈmɛnɝi/, /ˌdɑkjəˈmɛntɝi/, /ˌdɑkjuˈmɛnɝi/, /ˌdɑkjuˈmɛntɝi/
l. skjallegur, skjala- (documentary evidence, authorities); n. heimildarmynd