oniscus
Could not find onisco in Logeion dictionaries.
onisco Noun: masculine ablative singular, Noun: masculine dative singular of oniscus
ŏniscus or -os, i, m., = ὀνισκος,
- a wood-louse, milleped, Plin. 29, 6, 39, § 136; 30, 8, 21, § 54.
oniscus od. -os, ī, m. (ὀνίσκος), der Kellerwurm, die Kellerassel, Plin. 29, 136 u.a.