Latin minimal pairs distinguished only by vowel length

I thought the anus pair was bound to have been done before, as it's one of the most famous (what with people's childish sense of humor :D ).
Oh yeah? Well, beat this:

pénis : pénís (EL poena)


Civis Illustris
vomere, infinitive of vomō 'to vomit', also a passive = vomeris 'you're vomited'
vomēre, future passive = vomēris 'you will be vomited'
vōmere, ablative singular of vōmer vōmeris 'ploughshare', also a word for 'penis'

And so also:
vomerem, imperfect subjunctive 'I would vomit'
vōmerem, accusative singular of vōmer

Worth mentioning also vomerēs 'you would vomit' (imperfect subjunctive) vs. the nominative/accusative plural vōmerēs 'ploughshares'.
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Civis Illustris
• retina - a rein to drive horses with. Attested in early medieval Latin, derived from retineō retinēre. The Romance descendants (Spanish rienda, Italian rèdine) show the word was stressed on re-, and that the vowel quality was (the descendant sound of) Classical (and Late) /ɛ/.
• rētīna - feminine of rētīnus, 'in the shape of a net'. Attested in medieval Latin proper, particularly when talking about the "tunica rētīna" of veins and arteries that is found around the eye, i.e. the retina. I'm simply following the normal composition of a stem (rēte) and a suffix (-īnus) for the macrons here.


Civis Illustris
Not a minimal pair, but still interesting, because it involves two relatively common words:

miserē, adverbial form of miser 'miserable, pitiful'
miserē, singular imperative of misereō (if we can conceive such a usage...)
mīsēre, 3PL perfect of mittō mittere mīsī missum


Cívis Illústris
vitium, vitiī (=malum)
vītium < vītis, -is (=ūvārum stirps)