fifteenpenny

Etymology tree
Proto-Indo-European *pénkʷe
Proto-Germanic *fimf
Proto-Indo-European *déḱm̥
Proto-Germanic *tehun
Proto-Germanic *fimftehun
Anglian Old English fīftīene
Middle English fiftene
English fifteen
Pre-Greekder.?
Ancient Greek πατάνη (patánē)bor.
Latin patina
Latin panna?
Latin pannus?
Proto-Indo-European *-n̥kʷo-der.?
Proto-Indo-European *-nós
Proto-Indo-European *-iHnos
Proto-Germanic *-īnaz
Proto-Indo-European *-kos
Proto-Germanic *-gaz
?
Proto-Germanic *-ingaz
Proto-Germanic *panningaz
Proto-West Germanic *panning
Old English peniġ
Middle English peny
English penny
English fifteenpenny
From fifteen + penny.