Daniil Baturin<p>I have a fan theory about the Irish imperative mood. I wonder if actual linguists know of relevant papers on that subject.</p><p>The theory is that there once was a particle for the positive imperative mood, in addition to the negative particle "ná" (as in "Ná habair é!").</p><p>The particle was later forgotten, similar to how the past tense used to be marked with "do" (as in "do bhí mé ann") but is now marked just by lenition that "do" used to cause.<br>The positive particle didn't cause any mutation, or caused gemination/aspiration, like the negative one.</p><p>Here's the reasoning.</p><p>Old Irish had absolute and conjunct forms for all verbs (conjunct = for use with particles).<br>"Berthae libru" — "you all carry books" (absolute, 2nd pl).<br>"Ní beirid libru" — "you all do not carry books" (conjunct, 2nd pl).</p><p>"You all, don't carry books!" would be "Ná beirid libru" — "ná" is a particle and requires a conjunct form.<br>But the positive imperative "you all, carry books!" was "Beirid libru!" — the form looks like a conjunct form, even though there's no particle.</p><p>An alternative hypothesis is that conjunct forms evolved from imperative forms.<br>However, there's an argument against that in the imperative forms of compound verbs.<br>Old Irish compound verbs are kinda like English phrase verbs: "as-berid" is probably a combination of "as" ("from", "out of") and the verb "to carry" but the real meaning of "as-berid" is "you all speak". Their prefixes act like pseudo-particles: they require conjunct forms of the original verb, and remain unstressed, which is why those forms are called "deuterotonic" (second-[syllable]-stressed).<br>When used with a normal particle, the stress shifts to the pseudo-particle and that mangles the original verb really hard: "you (all) do not speak" is not "ní as-berid" but "ní eprid". That "twice-conjunct" form is called "prototonic".</p><p>"You all, speak!" is "Eprid!" — the form is prototonic, and we know it evolved from "as-beirid", which disproves the alternative hypothesis. It's more likely that people used to say something like "*Só eprid!" (random guess).</p><p>But whether there's enough data anywhere to prove that a positive imperative conjunct particle ever existed is a different story.</p><p><a href="https://functional.cafe/tags/linguistics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>linguistics</span></a> <a href="https://functional.cafe/tags/Gaeilge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gaeilge</span></a> <a href="https://functional.cafe/tags/MastoDaoine" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MastoDaoine</span></a></p>