Prefixoids ≠ prefixes: not all inseparable complex verbs are (underlyingly) the same

The goal of this paper is to investigate the structural distinctions that exist between prefixoids and prefixes in modern Dutch, with an empirical focus on inseparable complex verbs (ICVs). Adopting a derivational, separationist approach to the syntax-morphology interface (Distributed Morphology), we maintain that the fundamental difference between prefixoids and prefixes is that the former are clitics while the latter are initially merged with $\sqrt{\text{roots}}$   lower in the first phase (vP) prior to when these complex predicates are labeled (by v). As clitics, prefixoids are adjoined to the left-edge of the first phase (with the phase head v). Our theoretical claims are further substantiated by data extracted from the Dutch Celex Lexicon, providing a detailed assessment of the categorical status of the stem that prefixoids and prefixes attach to, their ability to contribute a resultative interpretation, and their potential effects on the argument structure of the ICV.