When I started rading this thread I had a general idea of the use and
meaning of "harbinger", but I decided to look in a dcitionary for more
information.
This is a summary of the entry in the OED:
Note that the "n" in "harbinger" is a later intrusion.
Etymology: Early Middle English herbergere and herbergeour , < Old
French herbergere (-begiere , habergiere ), ..... the current
harbinger : compare passenger , messenger , wharfinger .
†1. One who provides lodging; an entertainer, a host; a harbourer n.
common herberger, a common lodging-house keeper. Obs.
a.
c1175
....
2. One sent on before to purvey lodgings for an army, a royal train,
etc.; a purveyor of lodgings; in pl., an advance company of an army
sent to prepare a camping-ground; a pioneer who prepares the way.
Hist. and arch. †Knight Harbinger: an officer in the Royal Household
(the office was abolished in 1846).
a.
c1386 Chaucer Man of Law's Tale 899 The fame anon thurgh out the
toun is born..By herbergeours [v.r. -jours], that wenten hym
biforn.
....
3. One that goes before and announces the approach of some one; a
forerunner. Mostly in transf. and fig. senses, and in literary
language.
a1550 Hye way Spyttel Hous 834 in W. C. Hazlitt Remains Early Pop.
Poetry Eng. IV. 60 These to our place have dayly herbegers.
....
5. "harbinger of spring" n. A small umbelliferous herb of North
America, Erigenia bulbosa, which flowers in March in the Central
States. In its tuberous root, twice ternate leaves, and small white
flowers, it resembles the Earth-nut of Great Britain.
1868 A. Gray Man. Bot. Northern U.S. (ed. 5)
The entry in the OED "has not yet been fully updated (first published
1898)".
The OED's trendy relative says:
https://en.oxforddictionaries.com/definition/harbinger
harbinger
noun
1 A person or thing that announces or signals the approach of
another.
‘witch hazels are the harbingers of spring’
1.1 A forerunner of something.
‘these works were not yet opera but they were the most important
harbinger of opera’
Origin
Middle English: from Old French herbergere, from herbergier ‘provide
lodging for’, from herberge ‘lodging’, from Old Saxon heriberga
‘shelter for an army, lodging’ (from heri ‘army’ + a Germanic base
meaning ‘fortified place’), related to harbour. The term originally
denoted a person who provided lodging, later one who went ahead to
find lodgings for an army or for a nobleman and his retinue, hence,
a herald (mid 16th century).
--
Peter Duncanson, UK
(in alt.usage.english)