The Collaborative International Dictionary of English v.0.48:
Infix \In*fix"\, v. t. [imp. & p. p. Infixed; p. pr. & vb. n.
Infixing.] [L. infixus, p. p of infigere to infix; pref.
in- in + figere to fix: cf. F. infixer. See Fix.]
1. To set; to fasten or fix by piercing or thrusting in; as,
to infix a sting, spear, or dart. --Shak.
The fatal dart a ready passage found,
And deep within her heart infixed the wound.
2. To implant or fix; to instill; to inculcate, as
principles, thoughts, or instructions; as, to infix good
principles in the mind, or ideas in the memory.
Moby Thesaurus II by Grady Ward, 1.0:
69 Moby Thesaurus words for "infixed":
chronic, confirmed, deep-dyed, deep-engraven, deep-fixed,
deep-grounded, deep-laid, deep-rooted, deep-seated, deep-set,
deep-settled, dyed-in-the-wool, embedded, embossed, engrafted,
engraved, entrenched, esoteric, established, etched, fast,
firmly established, fixed, graven, immanent, implanted, implicit,
impressed, imprinted, inalienable, incorrigible, inculcated,
indelibly impressed, indwelling, ingrained, ingrown, inherent,
inner, instilled, internal, intrinsic, inveterate, inward,
inwrought, irreducible, irreversible, long-established, old-line,
on a rock, on bedrock, private, resident, rooted, secret, set,
settled, settled in habit, stabilized, subjective, thorough,
unalienable, unchallengeable, unquestionable, vested,
well-established, well-founded, well-grounded, well-set,