Idoburgish/Lexicon

? after a proto-word indicates that I don't know what PG/OHG/OD/OS/whatever word did I derive the descendant word from.

And yes, ED, I'm pathetically cribbing your lexicon. It looks cool.

Anatomy

 * foot n IVs [*fōts]
 * foot

Animals

 * rindj n Is [*hrinþaz]
 * boar
 * domestic animal, pet

Emotions

 * öönsj (önner-) n IIh [*wundrą]
 * wonder
 * Note: this is declined with the stem önner-, e.g. önneri
 * önnerber adj [önner-ber]
 * wonderful

Flight, Avians

 * ern n Ih [*arnô < arô]
 * eagle

Flora

 * eek n IVh [*aiks]
 * oak

Geography, names of countries, demonyms, etc.

 * Eejpöög n IVh [eej-pöög]
 * Idoburg
 * Eejpöögersj (Eejpöögsj) adj [eej-pöög-er-sj, eej-pöög-sj]
 * Idoburgish
 * (first form only) the Idoburgish language
 * eej n IIIh [*awjō]
 * island
 * Eenglandj n IIh [German Eng(land) + landj]
 * England, Britain
 * kries n IIs [OHG  kreiȥ]
 * district, geographical division
 * landj (lann-) n IIh [*landą or Lim. landj]
 * country
 * noord n IIh [OHG nord]
 * north
 * nöötsj n IIh [*nurþrą]
 * (dated) north
 * söötsj n IIh [*sunþrą]
 * south
 * wereldj n Is [*weraldiz]
 * world
 * wesj n IIh (wesjt-) [*westrą]
 * west
 * Wesjtrilandj (-lann-) n IIh [wesjt-ri-landj]
 * the Netherlands
 * öösj n IIh (öösjt-) [*austrą]
 * east
 * Öösjlandj n IIh [öösj-landj]
 * Germany

Hierarchy

 * nieëkoomer n Ihx [niew-koom-er]
 * novice, initiate, beginner

Home, Building, Settlements

 * höös n IIs [*hūsą]
 * house, home
 * leejen [*lag(i?)janą]
 * lay
 * plàtten [Lim. plate, infl. by Ib. word plàt(t)]
 * pave,
 * pöög n IVh [*burgz]
 * settlement
 * (rare) town
 * pööjen v III2w [*būaną, poss. backformation from "pöög"]
 * to build, construct
 * sjtedj [*stadiz]
 * city, town
 * tööp n IIh [*þurpą]
 * village
 * land (used only in the phrase mien tööp)
 * tööpsj adj [tööp-sj]
 * rural
 * (informal) uneducated
 * tur n IVh [*durz]
 * door

Humans, people

 * mann n Ih [*mann-]
 * man, human, person
 * manneheed n IIs [mann-heed]
 * humanity

Light

 * gaslampe n Ihe' [German Gaslampe]
 * gas lamp
 * löötsjen v 1w [*liuhtijaną]
 * to light, to give light

Movement

 * footganger n Ihx [foot-gang-er, German Fußgänger]
 * pedestrian
 * gangan v 3w [*ganganą]
 * go, walk
 * sjtraotj n IIIs uml [Latin strata]
 * street, paved road
 * sjömman v 3s oo [*swimmaną]
 * to swim

Speech, Linguistics

 * plàtj n Is [Lim. plat or Rip. Platt, influenced by flàtj "plain"]
 * speech, dialect, language
 * (je) Plàtj n Is [plàtj]
 * (informal) the Idoburgish language
 * séhjen (sáh-; ségk) v Iw irr [*sagjaną]
 * to say
 * séching n IIIh [sáh-ing]
 * sentence
 * saying, proverb

Kinship

 * tööj (tödj, töd-) n IIIs [*þiud-; *þeudō]
 * tribe, family
 * töötsj adj [*þiudiskaz]
 * tribal
 * Germanic

Time

 * diedj n Is [*tīdiz]
 * time, hour
 * frooj (froo-) adj [*frōwaz]
 * early

Uncategorized (so far), general

 * befaolen v IIw [OHG pfāl, cf. Dutch bepaalen]
 * define, determine
 * förteeljen v Iw [för-teeljen]
 * spread
 * gantj adj [*gantaz]
 * whole, all of
 * getan v IVs [*getaną]
 * to get, to acquire
 * (g)iessen v IIw [*gitisōną?]
 * to guess
 * machen v IIw [*makōną]
 * make, do
 * sicher adj [*sikuraz]
 * safe, secure
 * teel n IIh [*dailą]
 * part, fraction
 * töödjen v Iw
 * understand, translate/interpret
 * werdan v IVs [*werþaną]
 * become
 * passive voice aux. verb
 * öötmachen v IIw [ööt-machen]
 * comprise, compose
 * refl., af be comprised of

Appearance, Quality

 * goodj (beter, besj/besjt-) adj [*gōdaz, batizô, batistaz]
 * good, of good quality
 * gröötj adj [*grautaz]
 * big
 * Note: it's used with teel and comparative/superlative of feel (meer, meesj(t-) in the meaning of "a significant part, majority": meesjte teel "the most part, a significant majority"
 * tosjtöören v IIw [calque from German zerstören]
 * sjap (sjäp) n IIh [*skapą]
 * shape, condition
 * sjawan (sjäwan) v Vh [*skabaną]
 * to shave, to pluck (hair/feathers)
 * sjöön adj [*skauniz]
 * nice, beautiful

Science, technology, non-mediaeval things, etc.

 * drök n IIh [dröken < German drücken]
 * print, printing press
 * dröken v IIw [German drücken]
 * to print, type
 * ienföörjen v Iw [ien-föörjen]
 * to invent, to introduce
 * öötdenkjen v Iw [ööt-denkjen]
 * come up with, invent

Water, plumbing

 * klaoke [Latin cloaca]
 * sewer
 * roor [OHG rōr]
 * pipe, tube
 * sjömsle n IIhe [sjöm-sle]
 * swimming pool, pond
 * water n IVh [*watōr]
 * water
 * wateroor n IIh [water-roor]
 * usually in plural aqueduct

Pronouns

 * man [*mann-]
 * one (indef. 3rd person singular pronoun)

Affixes

 * -ber adj [OWG -bāri]
 * forms adjectives from roots with meaning "having ..."
 * e- [*ga-]
 * forms participles from verbs
 * -er n Ihx [-ārijaz, -warjaz], declension merged with -ar
 * forms agent nouns from verbs
 * forms words with the meaning "inhabitant of..."
 * -heed n IIs [*haiduz]
 * -hood, -ness
 * -ig adj [*-igaz]
 * generic suffix forming adjectives from roots
 * niew- (nieë- before consonants) [*niwjaz, niewe]
 * forms nouns from participles (w/o e- prefix) or from roots suffixed with -er, with the meanings "to ... again" and "new ..." respectively.
 * -sj (-isj after a non-palatalizable consonant) adj [*-iskaz]
 * generic adjective-forming suffix
 * -sle n IIhe [*-slą]
 * used to form nouns from verbs

Prepositions

 * af +N/+G
 * of, from
 * gein +N [*gagina]
 * against, opposite
 * in +N/D; +A [*in]
 * (with nominative/dative) in
 * (with accusative) into
 * neto +N/+D [*nehw-tō?]
 * near
 * öm +A [*umbi]
 * about, around
 * tweedj +N/+D [*twai-??]
 * between
 * över +N [*ubiri]
 * over, on
 * ööt +N [*ūt]
 * out (of)

Interjections, conjunctions, etc.

 * do [OHG doh; late borrowing]
 * though, but
 * om je (gantje(n) ...
 * ...-wide, all over the ...
 * över dat
 * moreover, on top of that
 * è [Lim. è]
 * (following an adjective) that's (so)
 * Note: It's used without a copula only in short phrases when subject is not specified (e.g. Önnerber è. - That's (so) wonderful.), and if the subject is specified, it requires to be used with a copula (e.g. Eejpöög önnerber è. - Idoburg is (indeed) wonderful.)
 * (informal) a particle used to amplify any preceding statement
 * used as an interrogative particle (similar to question tags in English)