Morpheme
Sentinel
Type
free base
Denotation
watch, guard
Etymology
Middle French sentinelle; Old Italian sentinella, of unknown origin but probably from sentina + -ella, from sentire; Latin sentīre
Evidence
biosentinel, nonsentinel, sentinel, sentineled, sentineling, sentinelled, sentinelling, sentinels, sentinelship, sentinelwise
Notes
<l> need not double (but can), especially with inflectional suffixes
