Underlying free (floating) features occur crosslinguistically. These f
eatures sometime function as morphemes. Such features, like segmental
morphemes, often refer to specific edges of the stem, hence they are '
featural affixes'. They get associated with the base to be prosodicall
y licensed. We propose to account for the association of such features
through a family of alignment constraints called 'featural alignment'
which is a featural version of McCarthy & Prince's Align (MCat, MCat)
. Under featural alignment, an edge is defined for a feature based on
a possible licensor, which may be a root node or a mora. We argue that
misalignment takes place under pressure from feature co-occurrence co
nstraints. Thus a featural suffix may get realized elsewhere in the st
em, surfacing as a featural infix or even as a featural prefix. This c
onstraints based approach is preferred to rule-based approaches since
it does not require a variety of additional assumptions needed within
rule-based approaches to account for the same phenomenon. These includ
e structure preservation, prespecification, extratonality and filters.