P / pĕr-ăcerbus
adjective

pĕr-ăcerbus

fem. pĕr-ăcerba · neut. pĕr-ăcerbum
very harsh
very harsh to the taste.
Lit.: uva peracerba gustatu, Cic. Sen. 15, 53.—
very painful figuratively
Trop., very painful: mihi peracerbum fuit, quod, etc., Plin. Ep. 6, 5, 6.