This dataset contains all irregular verbs in known Romance languages.
Philology
List of Irregular Verbs Across Romance Languages
Lectures at the Villa of Reduced Circumstances
This graduate course presents classical results in Romance philology. it focuses especially on Portugese and Spanish irregular verbs.
Portugese Irregular Verbs
This book discusses Portugese irregular verbs in great details.
Profanity in Early Irish
This undergraduate course discusses profanity in Early Irish, and relates such profanity to profanity in modern English.