-H-

Haplology
MORPHOLOGY: process by which a segment or a sequence of segments is deleted if it immediately precedes or follows the same segment or sequence of segments. EXAMPLE: the English possessive 's is not pronounced after the plural morpheme -s (e.g. John's reaction vs. the two cats' reactions). In Dutch, the noun-forming suffix -eling may attach to nouns, verbs and adjectives (dorpeling 'villager', zuigeling 'infant', stommeling 'idiot'). If the base ends in the sequence -el, one of the -el-sequences is haplologically deleted (edel 'noble', edeling 'nobleman').
LIT. Spencer (1991), De Haas & Trommelen (1992).

Head
SYNTAX: °X-bar theory.
MORPHOLOGY: notion introduced in morphology by Williams (1981a) to account for the fact that a complex word shares most, if not all, properties with one of its constituents. The constituent that determines the properties of the complex word as a whole is called the head of that word. The head of a word is either the rightmost or the leftmost morpheme of a word. This generalization lies at the heart of the so-called °Righthand Head Rule. EXAMPLE: the English word withstand is a strong verb just like stand. Hence, stand is the head of the complex word withstand. Also °relativized head, and °Relativized Righthand Head Rule.
LIT. Williams (1981a), Di Sciullo & Williams (1987), Spencer (1991).

Head Movement
SYNTAX: movement of a head, an X0, out of its projection to another head-position. EXAMPLE: in questions a finite verb may move to C0. In (i) the auxiliary will (an I, see °INFL) is moved to C0, leaving a °trace in I.

(i) [CP What [C willi] [IP John [I ti] buy]]?
Head movement obeys the °Head Movement Constraint.
LIT. Chomsky (1986b), Rizzi (1990).

Head Movement Constraint (HMC)
SYNTAX: a constraint originally formulated in Travis (1984:131):

(i) An X0 may only move into the Y0 which properly governs it
The HMC basically places a limit on the distance over which a head may be moved (°head movement). In effect, the HMC prohibits skipping a governing head position, as in (ii): buy moves to COMP in disregard of its being properly governed only by the I0 will.
(ii) * [CP What [C buyi] [IP John [I will] [VP ti]]]?
Recently, it has been argued that the HMC can be derived from more general principles, such as the °ECP.
LIT. Baker (1988), Chomsky (1986b), Rizzi (1990), Travis (1984).

Heavy-NP shift
SYNTAX: displacement of a so-called heavy NP (an NP which is prosodically 'heavy', i.e. contains a large amount of phonological material) to the right edge of the sentence:

(i) a They sent [that book that only got good reviews in the New York Times] to Mary
    b They sent t to Mary [that book that only got good reviews in the New York Times] 
Heavy-NP shift presumably is a so-called stylistic rule, i.e. a rule which does not belong to °core grammar. It may be related to °scrambling since it is not a case of °A-movement.

High
PHONOLOGY: a feature which characterizes sounds that are produced by raising the tongue body from its neutral position. EXAMPLE: the vowels [i] and [u] differ from [a], in that the former two are specified as [+high] and the latter as [-high].
LIT. Chomsky & Halle (1968).

Homonymy
SEMANTICS: the phenomenon that one form has two or more meanings and/or syntactic functions. EXAMPLE: the Dutch word bank is homonymous, since it can refer to (a) a couch, and (b) a bank. Equivalent to °ambiguity.

Homorganic segment
PHONOLOGY: a segment which has the same place of articulation as a neigbouring segment. EXAMPLE: in the English word input, pronounced as [imput], the °nasal /n/ has changed from °dental to °labial under the influence of the following /p/; [m] and [p] are homorganic: they are both °bilabial.

Host
MORPHOLOGY/SYNTAX: a word or phrase to which morphemes or °clitics are attached. EXAMPLE: in the English noun phrase John's book the noun John functions as the host for the possessive morpheme 's.

Hyperonymy
SEMANTICS: the semantic relation between a more general word and a more specific word. Tree is a hyperonym of oak, because the set of trees includes the set of oaks. Hyperonymy is the converse of °hyponymy.

Hyponymy
SEMANTICS: the semantic relation between a more specific word and a more general word. Dog is a hyponym of animal, because all dogs are also animals, but not vice versa. Hyponymy is the converse of °hyperonymy.

Hypostasis
°Conversion.