helm

Part of speech: noun
Gender: masculine
Stem: -a-
1. helmet, helm; 2. a covering, casing
Etymology
[Mod E HELMProt-Germ *helmaz; Goth hilms; O Fris helm; O Sax helm; Dt helm; OHG helm (Mod G Helm); O Icel hjálmr (Mod Icel hjálmur); Sw hjälm]
Paradigm

1.1.1. (a)

nouns, -a- stem, masculine gender
dæȝ
(day)
singular plural
nominative dæȝ daȝas
genitive dæȝes daȝa
dative (instrumental) dæȝe daȝum
accusative dæȝ daȝas

nouns, -a- stem, masculine gender
fisc
(fish)
singular plural
nominative fisc fiscas
genitive fisces fisca
dative (instrumental) fisce fiscum
accusative fisc fiscas

The disyllabic nouns ending in -el, -ol, -еn, -еr, -or, etc undergo contraction of unstressed vowels in the process of declension/suffixation; e.g. Nom fuȝol (bird) – Dat sing fuȝle, Gen fuȝles, etc.

The nouns ending in -h, lose -h in the process of declension/suffixation, while their stem vowel becomes lengthened; e.g. Nom seolh (seal (aquatic mammal)) – Dat sing séole, Gen séoles, etc

(a) short-stemmed version: scip-

nouns, -a- stem, neuter gender
scip
(ship. boat)
singular plural
nominative scip scipu, scipo
genitive scipes scipa
dative (instrumental) scipe scipum
accusative scip scipu, scipo

(b) long-stemmed version: scéap-

nouns, -a- stem, neuter gender
scéap
(sheep)
singular plural
nominative scéap scéap
genitive scéapes scéapa
dative (instrumental) scéape scéapum
accusative scéap scéap

The nouns structured like héafod (head) (long stressed syllable + short unstressed syllable) are declined the same way as the n scip is: Nom, Acc pl héafodu; while those structured like e.g. wæter (water) (short stressed + short unstressed syllable) have no endings in Nom and Acc pl: wæter (same as in case of the n scéap).